Mercedes cooling fan relay location
Before the AC control module is replaced it must be diagnosed as the fan control relay or a failed fan are more common causes of these symptoms. Step 2: Locate the fan control module. The fan control module can be located in a variety of places on the vehicle. The most common is on the radiator fan and condenser fan assembly as shown above.
14 posts · Joined 2012. #1 · Sep 5, 2012. I have just bought a year 2000 cl 600 5.7 V12 and it's temperature is running at about 85 deg during normal driving, when stationary the temp jumps to 120 deg within 2-3 mins but I have noticed when looking under bonnet that the main radiator fan isn't working, I've replaced the sensor on top of the ...
A fuse and relay box are located in the engine bay on the passenger side. To access this panel, open the hood and look on the left side of the engine. You will see the fuse box right behind the headlight. Remove the fuse cover by pressing on the locking tabs. Here you will find fuses F201 to F241.Probably that module has a problem. You need to check if the climate controller sends the control current top the pulse module. You can display the status of the aux fan control using the link starting from step 2. STAR TekInfo. item 20 shows the aux fan control current when the a/c is running.In the first one, powering pins 85 & 86 trip the relay, unpowered 30 and 87a are connected, powered 30 and 87 are connected. If you don't have a multimeter or other way of testing the connection, you should atleast hear a clicking noise when the relay is powered and unpowered. In the second relay, 1 and 2 power the relay, no connection is made ...MERCEDES W211 RADIATOR FAN RELAY LOCATION REPLACEMENTProducts used in the video: Replacement Relay: http://amzn.to/2hyOrQ4 Our Website: http://mechaniclife...Relay: K: Up to 31.05.2006: Terminal 15R power outlet relay, with power-down As of 01.06.2006: Circuit 15R seat adjustment As of 2009: Relay, circuit 15R sockets (with K power-down) (power supply of electric seat adjustment) L: Terminal 30X: M: Heated rear window relay: N: Circuit 15 relay / terminal 87FW: O: Fuel pump relay: P: Rear wiper ...Paul. I have a w203 c180. The radiator cooling fan doesn't work at engine hight temperature. ... Answered by a verified Mercedes Mechanic. ... is a fault with the engine computer or if the engine computer has detected a problem with a component like the engine coolant temperature sensor or fan relay then the fans may not come on like what you ...
what relay controls the cooling fan located on a 2001 mercedes ml430. I have a 2001 Mercedes ml430. I need to replace the relay for my cooling fan. I don't know where the relay is located in the fuse box. I know it's in the fuse box in the engine. But I don't know what relay it is.what relay controls the cooling fan located on a 2001 mercedes ml430. I have a 2001 Mercedes ml430. I need to replace the relay for my cooling fan. I don't know where the relay is located in the fuse box. I know it's in the fuse box in the engine. But I don't know what relay it is.Cooling Fan Relay Replacement. Estimate. $169.75. Shop/Dealer Price. $200.63 - $260.22. 2001 Mercedes-Benz SLK230 L4-2.3L Turbo. Service type. Cooling Fan Relay Replacement. Estimate.When should radiator fans start. I bought a preowned s320 recently, and notice that the radiator fans started to turn about 5 seconds after ignition switch is on, and even before starting the car. Generally, I understand that radiator fans should start only after coolant or engine temperture reaches a certain high temperature, and when cooling ...The best price was parts.com, even with shipping. Part number is 0165459632. To swap it out you need a 10mm socket and a short ratchet. Also need a medium Phillips screwdriver. The unit is located in the left front wheel well, behind the plastic wheel well covering. It is a simple plug and play swap out.Shop for the best Radiator Fan Relay for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. ... MasterPro Ignition 30 Amp 4 Terminal Cooling Fan Module - 2DR1088. Part #: 2DR1088 Line: MPI. 1 Year Limited Warranty. Terminal Type: ...Jun 14, 2021 · roncallo. 17224 posts · Joined 2005. #2 · Jun 15, 2021. The 560 SL Aux fan comes on at low speed when the pressure reaches 20 Bar. It will come on at high speed when the water temperature reaches 105°C. The temperature switch you replaced has a second feature that will shut off the compressor when the water temp reaches 115°C.
15A Starter relay: 60: 10A Oil cooler fan (113.990 (CLS 55 AMG), 156.983 (CLS 63 AMG)) 61: 40A Electric air pump: 62: 30A Backup relay: 63: 15A Not used: 64: 7.5A Exterior lighting rotary switch: Instrument cluster (before 2006 model year) Control panel KLA (Automatic climate control system) 65: 20A EZS control unit: Electric steering lock ...On average, the cost for a Mercedes-Benz 500SEL Cooling Fan Relay Replacement is $121 with $26 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 1992 Mercedes-Benz 500SEL V8-5.0L: Service type Cooling Fan Relay Replacement:This part controls the Aux Fan by the radiator / condensor. It is visible under the front drivers bumper after removing the belly pans. Unfortunately the one bolt holding it on comes from the inaccessible front of the car, possibly requiring headlight or bumper removal (more great engineering) Mercedes W208 W210 W202 Auxiliary Fan Control ...It enables the cooling fan to pull air through the radiator and the condenser to cool out the vehicle. The relay is part of the cooling fan circuit. Other components include a temperature sensor, control module, and the fan motor. The relay is the most likely component to fail in the circuit and must be replaced. The relay coil will generally ...Assignment of the fuses and relay Mercedes Sprinter 2006-2018. Fuse and relay location. Fuse box diagram. Cigarette lighter fuse. Assignment of the fuses and relay Mercedes Sprinter 2006-2018 ... Air-conditioning system cooling fan - cab with partition and reinforced without rear-compartment air-conditioning systemFuse box diagram (location and assignment of electrical fuses and relays) for Mercedes-Benz B-Class (B160, B170, B180, B200) (W245; 2006-2011).
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Valid for model 221 with engine 642.8: AdBlue® relay supply-77: Advanced sound system: Sound amplifier (from 2009) 50: 78: S 65 AMG with engine 275: Additional fan relay (from 2009) Valid for model 221 with engine 642.8: AdBlue® relay supply (from 2009) 25: 78Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. Mercedes-Benz G500 Cooling Fan Relay Replacement costs starting from $131. The parts and labor required for this service are ...On average, the cost for a Mercedes-Benz CLK320 Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 1998 Mercedes-Benz CLK320 V6-3.2L: Service type Cooling Fan Relay Replacement:On average, the cost for a Mercedes-Benz S560 Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2018 Mercedes-Benz S560 V8-4.0L Turbo: Service type Cooling Fan Relay Replacement:
d) F32, Front Pre-fusebox, fuses f68 to f77. e) F33, Rear Pre-fusebox, fuses f78 to f91. Note: the Pre-fuses provide high current protection for very large consumers (eg fans) and these should not fail. 2. Fuse assignments in these fuseboxes. 3. Relay assignments in N10/1, N10/2. As can been seen on the WIS drawing, fuse details are provided ...Cooling Fan Relay Replacement Service How much does a Cooling Fan Relay Replacement cost? On average, the cost for a Mercedes-Benz GLK350 Cooling Fan Relay Replacement is $137 with $42 for parts and $95 for labor. Prices may vary depending on your location.Your car's cooling fan, or radiator fan, plays an important job in keeping your engine cool. Some of the most common causes of a faulty radiator fan include a blown fuse, a faulty temperature sensor, or a defective fan relay. If the fan stops working, your engine could overheat and be damaged. Below, we'll explain how you can tell if your ...The cooling fan switch simply activates the cooling ... This is a short video on how to locate, remove and test the radiator cooling fan switch on your vehicle.WHERE IS THE COOLING FAN RELAY LOCATED ON A MERCEDES CLK 320 2 Answers. ... Does a 2000 Mercedes clk430 have a engine cooling fan relay. Also, when are the two radiator fans suppose to come on? 2000 Mercedes-Benz CLK-Class CLK 430 Coupe-Maintenance & Repair. I have a Mercedes CLK 500 the horn has stopped working. I have changed the fuse and the ...The main fuse box is located in the engine bay on the left side/driver side. Fuses and Relays in the engine compartment. Here, you will find fuses 43 to 67. The unit where the fuses are installed is called the driver-side SAM control unit (N10/1), which has fuses and relays. SRS Restraint System. Tension retractor.Mercedes Cooling fanhow to replace cooling fan on a mercedes gl450 x164 bodyShop the Parts used: https://hubs.ly/H0cMChV0SUBSCRIBE: https://hubs.ly/H0cDnfN0Kyle Bascombe from FCP Euro is here to show you how to replace the Cooling f...
If you see spikes of voltage every sex seconds or so, the controller may be working and trying to start a bad fan. Or the fan could be working but the controller is faulty and doesn't see things the same. Replacing both the fan and controller will get a bit pricy, so you should be sure that you get the bad one first (if possible).
This information will also be useful to the owners of the Mercedes GL X166 and Mercedes GLS X166, because these cars have similar electrical circuits. In it you can find a description of the fuses and relays Mercedes 166 with box diagrams, photo examples of their performance and locations. Note the fuse responsible for the cigarette lighter.11408 posts · Joined 2006. #20 · May 12, 2013. Your auxillary fan speed control is quite complex as it is responding to two sources: the engine & the a/c system. a) Coolant temp (B11/4) + Oil temp (B40) via ECU. b) …Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz M-Class (W163) (ML230, ML270 CDI, ML320, ML350, ML400 CDI, ML430, ML500, ML55 AMG) (1997-2005). ... Engine fan relay, stage 1, with air conditionin: K27: Rear-end door washer pump relay: K28:On average, the cost for a Mercedes-Benz R350 Cooling Fan Relay Replacement is $137 with $42 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2012 Mercedes-Benz R350 V6-3.5L: Service type Cooling Fan Relay Replacement:Are you a fan of Birkenstock footwear? If so, you’ll be glad to know that finding your perfect pair has never been easier. With the rise in popularity of Birkenstock shoes, many st...On average, the cost for a Mercedes-Benz E320 Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2006 Mercedes-Benz E320 L6-3.2L Turbo Diesel: Service type Cooling Fan Relay Replacement:Shop the Parts used: https://hubs.ly/H0cMChV0SUBSCRIBE: https://hubs.ly/H0cDnfN0Kyle Bascombe from FCP Euro is here to show you how to replace the Cooling f...
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Mercedes Cooling fanLocation of control units, purpose of all fuses and relays Mercedes 202 with block diagrams and photo examples. Cigarette lighter fuse. ... windshield wiper/washer, rain sensor, rear window defroster, cooling fan motor, auxiliary heating/air conditioning system, headlight washers, hazard warning lights: F42 (7.5A) Windshield washer fluid …On average, the cost for a Mercedes-Benz CL55 AMG Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2002 Mercedes-Benz CL55 AMG V8-5.5L: Service type Cooling Fan Relay Replacement:Feb 10, 2021 ... Yours must be the simplest radiator fan wiring in the world! My Nissan has two radiator fan relays with 6 connections on each relay.In addition to these main relays, there may be other relays in the Mercedes W204 relay diagram that control various other electrical components, such as the windshield wipers, cooling fans, air conditioning system, and more. Each relay has a specific function and plays a crucial role in the overall operation of the vehicle’s electrical system.Mark. Just for the record, and future reference, there is NO cooling fan relay on a UK Spec W201 190E, which doesn't have aircon. The postive wire comes directly from fuse No.10 in the fusebox, through the temp switch and the wire out of the switch goes to the fan clutch magnetic solenenoid, which is permanently earthed - no relays etc, as ...Sep 8, 2010 · 3308 posts · Joined 2006. #2 · Sep 9, 2010. After the dealer's evaluation: Well, I figured it's worth to take a look at the suction fan (part number A 169 500 05 93 05)... I have first unplugged the fan (the big blue plug in the upper left corner of the radiator) Sensitive content, not recommended for those under 18. MERCEDES W212 E CLASS RADIATOR FAN RELAY LOCATION E350 E400 E250 E200 E220 E250 CDI BLUETECIf you have Mercedes W212 E Class and you need to see where the ra...Re: Radiator cooling fan relay location. by PhyrraM » Mon Mar 21, 2016 5:39 pm. According to the wiring diagrams, there is also a "main fan relay" on the interior fusebox. '93 Winestone SS Auto, '91 Pearl White SS. '93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! ….
In this publication you will find a description of the fuse and relay Mercedes Vito 638 with box diagrams and photo examples of their location. Select the fuse responsible for the cigarette lighter. ... (M111), Fuel Pump Relay (M111), Radiator Fan Motor (M111), Fluid Pump Relay (M611), Breather Heater (M611) 20: 15A Terminal 15 (petrol engines) 21:On average, the cost for a Mercedes-Benz CLK320 Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 1998 Mercedes-Benz CLK320 V6-3.2L: Service type Cooling Fan Relay Replacement:Advertisement When a fan malfunctions, the problem is usually loose or dirty blades. If the fan won't operate or if it's noisy, cleaning and tightening will usually fix it. Here's ...11408 posts · Joined 2006. #1 · May 28, 2015. This post is intended to define the location and fuse/relay assignments of the seven fuse boxes on W166 ML model. Due to the number of WIS drawings it will be on 2 pages. Also a Service information document is included with information about silver & brass fuse contacts on the first pdf.Wrap Up. To fix the P0691 fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion. Check the Cooling Fan 1 Relay and the Cooling Fan Control Module for faults. If necessary, replace the faulty components. Don’t forget to check the Engine Control Module (ECM) as well.60A Air conditioning fan (cooling unit) F5: 40A Secondary air pump: Lower right section. Diagram. ... (SAM) / Fuse and Relay Box (SRB) / Engine Control Module, Ignition Switch, Instrument Cluster: 1: 25A Door control unit, left ... are suddenly not working anymore. pls where is the location of this relais. Mercedes Viano W639 (2008) Reply. Iwan ...ML270cdi. Dec 18, 2018. #1. hello all. I have a 2002 ml270cdi and I'm having trouble with the radiator cooling fan. This is a single fan unit which sits behind the radiator. The issue I have is it doesn't work the temperature gets to between 80-90 on temp gauge then coolant level light comes on which indicates a fault with the cooling fan.Wrap Up. To fix the P0691 fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion. Check the Cooling Fan 1 Relay and the Cooling Fan Control Module for faults. If necessary, replace the faulty components. Don't forget to check the Engine Control Module (ECM) as well.In the first one, powering pins 85 & 86 trip the relay, unpowered 30 and 87a are connected, powered 30 and 87 are connected. If you don't have a multimeter or other way of testing the connection, you should atleast hear a clicking noise when the relay is powered and unpowered. In the second relay, 1 and 2 power the relay, no connection is made ... Mercedes cooling fan relay location, On average, the cost for a Mercedes-Benz SL55 AMG Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2004 Mercedes-Benz SL55 AMG V8-5.5L Turbo: Service type Cooling Fan Relay Replacement:, as of 1.9.96: Auxiliary fan (engines 111.943/.973, 112, 604, 605 with code 581a) as of 1.9.96: Electric suction-type fan (engine 111 with code 581a) 40: 30: Instrument cluster Automatic heater (HEAT): 10 Heater pushbutton control module Coolant circulation pump Duovalve: Air conditioning (Tempmatic):, If so, there’s a chance your car just needs a new switch. If the fan works in the slower speeds, but not the high speed, there may be a problem with the fan relay. If the fan does not work at all, start in the fuse panel. Step 3: Check the fuse panel(s). Check the workshop or owner’s manual for the location of the fuse and relay panel(s)., As said if temp sensor is failing and giving wrong info that would be my 1st suggesioo I'd also the cooling fan relay to see if sticking or shorting out. I can't imagine both costing much to replace, however if the coolant temp sensor is foul, that would be my 1st thing to swap out ... Location Finland Your Mercedes W212/-09/350CDI, W219/-07 ..., 2015 Mercedes-Benz GL350 V6-3.0L Turbo Diesel. Service type. Condenser Fan Relay Replacement. Estimate. $199.83. Shop/Dealer Price. $242.08 - $329.93. Show example Mercedes-Benz GL350 Condenser Fan Relay Replacement prices., Cooling Fan Relay Replacement Service How much does a Cooling Fan Relay Replacement cost? On average, the cost for a Mercedes-Benz GLK350 Cooling Fan Relay Replacement is $137 with $42 for parts and $95 for labor. Prices may vary depending on your location., The reason that nobody could tell you where the relay is located - is because there isn't one! The electric suction fan (engine & a/c) with integrated control (M4/7) is driven from ME-SFI control module [ECU] N3/10. It is protected by fuse f5 (125A) located in Front pre-fusebox F32., Relay: K: Up to 31.05.2006: Terminal 15R power outlet relay, with power-down As of 01.06.2006: Circuit 15R seat adjustment As of 2009: Relay, circuit 15R sockets (with K power-down) (power supply of electric seat adjustment) L: Terminal 30X: M: Heated rear window relay: N: Circuit 15 relay / terminal 87FW: O: Fuel pump relay: P: Rear wiper ..., Location: Crimea, Ukraine, Eastern Europe, Europe; View on OpenStreetMap; Latitude. 45° north. Longitude. 34° east. Elevation. 200 metres (656 feet) Open Location Code. …, The fuse box on the drivers side of the firewall has most of the common fuses in it. The last one is located under the rear seat. There is a access panel below the passengers side rear seat, just unclip the plastic panel from the top. Fuse chart can be found in the rear with the spare tire tools. This will help., This video gives you the main location of all the fuses and relays in your W204 Mercedes Benz 2008-2014. If you haven't subscribed already please do so and f..., Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz E-Class (E 200, 220, 230, 250, 260, 280, 300, 320, 400, 420, 500) (W124) (1985-1996). ... Auxiliary fan relay, terminal 86 Auxiliary fan relay (stage 2) O2S (after TWC) heater relay module:, SL55 COOLING FAN REPAIRED. It was very bad few days ago that an oil hose leaked oil into the fan control unit. I couldn't find the fan easily so I have done the following to repair it, a used fan costs about 400 USD, the repair cost was only 220$ including installation. The C240 FAN Control Unit IS ECL 600W 12.5V, while the SL55 is ECL 850 W 13V., Fuses and relays are in 4 locations: a) Engine bay left, inside box F1: K40/2 covers f1 to f27, f37 to f45. relays A to J. b) Engine bay right, inside box: K40/4 covers f1 to f7, relays k1 to k3. c) Trunk, inside fuse box F4: covers fuse f1 to f9. d) Cockpit, lights fuse box N7-1: covers f78 to f86. f10 to f17 unused., Circuits protected. 8. Cellular Telephone (TRU) 16. Heated Seals. 25. Tempmatic Blower Switch. Advertisements. Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz 190, 190 E and 190 D (W201) (1982-1993)., Heat pumps are an increasingly popular alternative to traditional heating and cooling systems. They work by transferring heat from one location to another, rather than generating h..., Mercedes w220 represents the fourth generation of Mercedes-Benz S-class cars which were produced in 1998, ... One fuse and relay box is located on the left side of the engine compartment. Photo - example. Diagram. Assignment. ... relay control fan unit of the engine cooling system or AT oil (K25) via plug connector (X22/3) (until 09.2002) ..., 02/09/2020. Below you will find fuses and relay diagram for Mercedes-Benz C-Class W204 (2008-2014). If you want to replace any fuses, make sure to replace it with the same color fuse or with the same ampere fuse.Otherwise you could overload the wires or even cause more serious problems to that circuit if you use a higher ampere fuse., In the first one, powering pins 85 & 86 trip the relay, unpowered 30 and 87a are connected, powered 30 and 87 are connected. If you don't have a multimeter or other way of testing the connection, you should atleast hear a clicking noise when the relay is powered and unpowered. In the second relay, 1 and 2 power the relay, no connection is made ..., During this time, the model has been restyled. In this publication you can find a description of the fuses and relays Mercedes w205 with box diagrams, photos – examples of performance and locations. Select the fuse responsible for the cigarette lighter. The execution of the boxes and the purpose of the elements in them may differ from those ..., In this guide, we'll explain the location of the fuses and relays in the BMW 3 Series E90 (2004 – 2013). On different models, the list of fuse locations may differ slightly, we present diagrams of the most common modifications of the BMW 3-series. ... Cooling fan cut-out relay DC converter: F29: 5 A: Sunroof: F30: 10 A: Seat belt positioner ..., On average, the cost for a Mercedes-Benz E350 Cooling Fan Relay Replacement is $137 with $42 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2014 Mercedes-Benz E350 V6-3.5L: Service type Cooling Fan Relay Replacement:, On average, the cost for a Mercedes-Benz SL55 AMG Cooling Fan Relay Replacement is $161 with $66 for parts and $95 for labor. Prices may vary depending on your location. Car Service Estimate Shop/Dealer Price; 2004 Mercedes-Benz SL55 AMG V8-5.5L Turbo: Service type Cooling Fan Relay Replacement:, 2016 Mercedes-Benz GLC300 L4-2.0L Turbo. Service type. Cooling Fan Relay Replacement. Estimate. $226.95. Shop/Dealer Price. $277.47 - $389.59. Show example Mercedes-Benz GLC300 Cooling Fan Relay Replacement prices., A fuse and relay box are located in the engine bay on the passenger side. To access this panel, open the hood and look on the left side of the engine. You will see the fuse box right behind the headlight. Remove the fuse cover by pressing on the locking tabs. Here you will find fuses F201 to F241., Assignment of fuses and relays Mercedes-Benz Vaneo (W414) with box diagrams, photo examples of execution and location. ... Cooling fan relay (A 002 542 13 19) K38/3: Starter relay (A 002 542 23 19) K46: ... There is no such relay box in the position shown. I would appreciate any pointers to the location of said relay box. Reply. Leave a Reply ..., 9442933 Cooling Fan Relay. Part Number: PP19442933. Vehicle Info Required to Guarantee Fit. $51.99. 0. Add to Cart. Vehicle Fitment. 1992 - 1997 Volvo 960 All Submodels All Engines. 1993 - 1997 Volvo 850 All Submodels All Engines., Fuse box #1. Fuse box #2. All electrical equipment. Mercedes-Benz W210 is the second generation of the E-class executive passenger cars of the German automaker. It replaced the W124 model and was produced from 1995 to 2003. The car was available in sedan body through 2002 and station wagon through 2003. In this article we will understand in ..., Fuse box diagram (location and assignment of electrical fuses and relays) for Mercedes-Benz B-Class (B160, B170, B180, B200) (W245; 2006-2011)., A fuse and relay box are located in the engine bay on the passenger side. To access this panel, open the hood and look on the left side of the engine. You will see the fuse box right behind the headlight. Remove the fuse cover by pressing on the locking tabs. Here you will find fuses F201 to F241., SOURCE: 99 MERCEDES BENZ C230 AUXILIARY COOLING FAN RELAY. I thought they where either on the side of the core support (follow the wire harness and it should go to the relay). If not remove the fuse box lid and then take out the screws retaining the lid housing and you will find a series of relays. There will be one for high speed (engine uses ..., Cooling Fan Relay Replacement Service How much does a Cooling Fan Relay Replacement cost? On average, the cost for a Mercedes-Benz C230 Cooling Fan Relay Replacement is $105 with $10 for parts and $95 for labor. Prices may vary depending on your location. , Rear fuse box. Opening: Open the tailgate. Remove the tool kit from the storage compartment at the rear (see vehicle owner's manual). Remove tool cup 1 from the side trim. 3 fuse holders and a relay socket are shown. Closing: Insert the tool cup 2 in the storage compartment at the rear and lock it.