Mercedes sprinter horn relay location

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Mercedes sprinter horn relay location

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Note: The online Owner's Manual is the latest version available. Deviations between this manual and items specific to your vehicle may occur since Mercedes-Benz constantly adapts its vehicles to the latest technology and modifies design and equipment.

Please note that this online Owner's Manual does not under any circumstances replace the printed Owner's Manual which is supplied with the vehicle. Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that all bulbs are in working order at all times.

Bulbs and lamps can be very hot. You should therefore allow them to cool down before you change them. Otherwise, you could be burned if you touch them.

mercedes sprinter horn relay location

Keep bulbs out of the reach of children. Otherwise, they could damage the bulbs, for example, and injure themselves. Never use a bulb which has been dropped.

Interior Fuse Box Location: 2007-2018 Mercedes-Benz Sprinter 2500

Such a bulb may break or even explode and injure you. Halogen bulbs are pressurised and can explode when you change them, particularly if they are very hot. You should therefore wear eye protection and gloves when you are changing them. Xenon bulbs carry a high voltage. You could get an electric shock and be seriously or even fatally injured if you touch the electric contacts on xenon bulbs.

Therefore, never remove the cover from xenon bulbs. Do not change xenon bulbs yourself, but have them replaced at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

Switch off the lighting system before changing a bulb to avoid a short-circuit. Only touch new bulbs with a clean lint-free cloth or similar. Do not work with wet or greasy fingers. If the new bulb still does not light up, consult a qualified specialist workshop, e.

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Have the following LEDs and bulbs changed at a qualified specialist workshop, e. Make sure the bulbs are always securely fitted.Mercedes-Benz W models are equipped with two horns, a high and low tone. A vehicle horn is a sound-making device used to warn others of the approach of the vehicle or of the vehicle's presence. Mercedes-Benz W model horns are electric, driven by a flat circular steel diaphragm that has an electromagnet acting upon it, which is attached to a contactor that repeatedly interrupts the current to the electromagnet.

This arrangement works like a buzzer. The horns produce sound levels around decibels and have a current draw of amperes. Mercedes-Benz W model horns are arranged in pairs, sounded together to produce two notes. The paired horns only increase the decibel output a small amount, but the two different notes are more perceptible, especially in an environment with a high ambient noise level.

The horn circuit on W models is complicated compared to models past. The horn button in the steering wheel is activated by the driver. For more specific info, see the end of this article for an overview of how to test the horns. Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste.

Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability. Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users.

Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information. There is a high tone horn mounted on the right side of the radiator support red arrow and a low tone horn mounted behind the left side headlight, in the fender blue arrow. Large Image Extra-Large Image.More often than not the number one cause of indicator problems on the Mercedes Sprinter range is due to the failure of a small control relay located on the lower edge of the fuse board on the steering column.

Faults are usually intermittent function of the indicators and hazard warning lamps, ordinarily the indicator will flash two or three times as normal then stop flashing altogether.

The relay that is furthest from the thick red wire lug is the indicator control relay OEM Part is usually grey in colour.

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Replace this unit and test indicators. The next items to check if this does not cure the problem are the indicator flasher relay module and column control stalk — but nearly always the problem lies with this small control relay. On the Sprinter the flash module itself is an electronic device and forms an integral part of the fuse control box beneath the steering column and cannot be swapped out without replacing the whole of the fuse board.

This is however a very reliable component and is not often known to fail. Read below for further information:. The instrument cluster continually monitors the right and left turn signal circuits to determine the proper turn signal and hazard warning indicator operation, then flashes the proper turn signal indicators and the contactless relay on and off accordingly.

The multi-function switch, the turn signal relay and the left and right turn signal circuits to the instrument cluster can be diagnosed using conventional diagnostic tools and methods. For proper diagnosis of the wipers, turn signals and engine start control module within the fuse block or the instrument cluster circuitry that controls the turn signal indicators and the contactless relay, a Mercedes dealer scan tool is required.

Refer to the appropriate diagnostic information. Operate the hazard switch several times and check for intermittency. Thanks for the info Steve,I have this problem when I bought My sprinter.

I thought it may relate to the computer as I have seen this happen in industry on PLCs.

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I will go through your suggestions, PS there is an after market Bull bar fitted ,I thought the indicator earth may not be very good. But I have fixed them Regards Gary. Hi Gary, I bet its a problem in the fuse board under the steering wheel covered in the blog, especially the push in column connector at the top.

Strip it down and have a look, you may get lucky! Let me know how you get on. All the best Steve.


I have a one ton dual I had the same issue with the turn signals working fine until you apply the brake, then they stop flashing, and partially light. I replaced the relay first, no change. Then I cut out the converter for hitch wiring! Work perfect now…just need to replace the convertor for the trailer lighting. Hope this helps Steve herndon electric. Hi Steve Thanks for very informative posts — quick question and hopefully related enough to get posted — where do I find the signal relay on a W bus?

I have had the instrumentpanel screwed out thought it may be hiding back there — and I have also tried to go through the fuse-box under the seat — but nowhere to be found.Normally wouldn't leave a comment - but seriously thank you so much.

I'm sure this was a lot of hard work. But you have probably helped so many people including myself. So thank you. You guys are good Pls am having a problem on my w, can't figure the location of electronic parking brake module. Read More.

Fuse box location and diagrams: Mercedes-Benz E-Class (1996-2002)

Search Content Search Content. Mercedes-Benz C-Class W vehicles have several fuse panels. Let's take a look at all of them. Interior Driver's Side Fuses This fuse box is located on the side of the dashboard on the driver's side.

So thank you Log in or register to post comments. Dislike 0. Pls am having a problem on my w, can't figure the location of electronic parking brake module Log in or register to post comments. Front SAM control unit. Alarm siren. Electric steering lock control unit. Diagnostic connector. Electronic ignition lock control unit. Analog clock.

Climate control unit.

mercedes sprinter horn relay location

Instrument cluster. Climate control operating unit. Steering column tube module control unit. Electronic Stability Program control unit. Antenna changeover switch for telephone and stationary heated. Electric parking brake control unit. Not Used. Glove compartment lamp. Dedicated Short-Range Communications control unit. Supplemental Restraint System control unit. Weight sensing system WSS control unit. F Relay.Lake Chevy helped make these videos. We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car.

The video above shows how to replace blown fuses in the interior fuse box of your Mercedes-Benz Sprinter in addition to the fuse panel diagram location. Electrical components such as your map light, radio, heated seats, high beams, power windows all have fuses and if they suddenly stop working, chances are you have a fuse that has blown out.

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If your Sprinter is experiencing electrical problems, you should always check the fuses first, because they are relatively easy to check and cheap to change. Some Mercedes-Benzs have multiple interior fuse boxes including in the trunk - the video above will show you where the interior fuse box of your Sprinter is located. If your Sprinter has many options like a sunroof, navigation, heated seats, etc, the more fuses it has.

Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component in question. If you need to replace a blown fuse in your Sprintermake sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your Sprinter If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak.

Did you know that heat is worse for your battery than cold? Replace it every 4 years. Learn where your spare tire and jack are located before you need it on the side of the road. Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb. Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!

Getting Started Prepare for the repair. Remove Cover Locate interior fuse box and remove cover. Locate Bad Fuse Find the fuse that is tied to the bad component. Remove Fuse Take out the fuse in question and assess if blown.

Test Component Secure the cover and test component.

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More Info. Additional information on interior fuses. Video Description. Other videos you might find helpful. Quick fix for minor power steering fluid leaks If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak Mercedes-Benz Sprinter 3.

Replace your car battery Did you know that heat is worse for your battery than cold? Replace it every 4 years Mercedes-Benz Sprinter 3. Change a flat tire Learn where your spare tire and jack are located before you need it on the side of the road Mercedes-Benz Sprinter 3. Change a rear blinker Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb Mercedes-Benz Sprinter 3.

Coolant flush Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here! The Right Parts. Full list of part and tools.

Download Mercedes-Benz owners manuals.Sign In with Edmunds. Changed the o ring that causes such a fuss, don't know why nothing wrong with it. Why aren't I getting any power to the injectors? Howdy, Stranger! It looks like you're new here.

If you want to get involved, click one of these buttons! Sign in or Register. On Edmunds.

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Visit Edmunds How-To Guides. Service Centers in. Browse Forums by:. What Edmunds Says Pros. Got a lease deal in hand?

Give us the details and we'll tell you if it's a good one. Evaluate my deal. Do you have a lease expiring and got offered the chance to extend it for a month or more? Did you get a great deal? Meet your fellow owners in our Owners Clubs.

mercedes sprinter horn relay location

October in Dodge. If your Sprinter cranks but wont start: 1. Did you put gas in the tank instead of diesel? If you have access to a DRB Daimler scan tool check fuel pressure. You must have at least PSI to start. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. The fuel pressure regulator is located at the rear of the fuel rail on to trucks. Its held in with two little torx head screws and can be a mother to get out. It's not terrible you just have to work by feel mostly.

Sprinter Horn - Where?

Remove the electric plug and the two screws, then pull the regulator towards the firewall and it will come right out of the rail. Inspect the o-ring and back up washer on the end of the regulator. If you have a split or tear in this o-ring you just found your problem. Replace the o-ring and reinstall. If this is not the problem you may have too much fuel bypassing inside worn injectors.

You need to run a fuel quantity test. I will post how to do this in a separate post. November Hello, I had the same problem my stopped and after 2 dealers and one diesel mechanic the van is running. The O ring you mentioned was broken and I believe this was the entire problem. Now the van idles at RPMs and runs hard but as soon as the RPMs raise to it runs smooth and the dealer's mechanics do not know how to increase the iddle speed. I need to increase the idle speed and I believe the specs call for RPMs.

You are most likely correct.If you own a late model Mercedes Vito on W you will no doubt be fully aware of how poor the horn is compared to other medium sized commercial vehicles and most other cars on the road!. This can be easily remedied by installing better horn sounders — a trip to the local scrap yard will produce the goods at a very low price. Sure, you can buy off-the-shelf horns from accessory shops but rarely are they of the quality of OEM units, often made by top manufacturers like Klaxon, Hella or Fiamm.

When you get to the scrap yard look for high end saloons and estates, BMW, Jaguar and Audi being the most common producers of quality dual horns. The scroll type horn produces a loud and full tone, a Hi-Lo tone pair will when fitted, scare most motoring offenders out of play!

I cut the wiring looms back as far as possible when removing them from the donor car so that I could fully utilise the attached wiring and their waterproof plug and socket type power connectors.

mercedes sprinter horn relay location

Fitting was easy. Lift the bonnet, remove the three screws on the top of the grille, un-slot it and remove it up and out from the Vito. Locate the two plastic moulded grey ABS brackets either side of the radiator that support the front bumper skin, position your horn on the inside of these brackets and check the fit.

Drill a suitable hole through the plastic bracket and fix the horns either side — note there is a great deal of room behind the grille if its a model without air conditioning. You will probably have to be a little more inventive with the mounting location if you are restricted by the air-conditioning condenser and its cooling fans, it would probably be good practice to check clearance by refitting the grille before committing to a mounting place.

However it is an easy job to mount the horns in this area. Once you have mounted the new horns, wire them both in parallel and route the two connecting wires through to the drivers side headlamp unit Right Hand Drive. Stretch your arm down behind and below the headlamp unit and you will find the original single disc type horn, feel for the connector and unplug the lead feeding it back through to the engine compartment. Splice in your new horn wires to the original horn connector, tape up the joints and tie wrap the cables neatly out of the way.

Test your horns and refit the grille assembly. If you would like to hear the resulting sound of fitting the dual tone horns, just select the W horn sound track in the Mercedes Sounds player to your right and click play. Are these horns waterproof and sort of corrosion resistant with the actual horn directed straight on towards the weather in front of the vehicle as in the picture above? I understand one would mount the scroll of the horn to point down should any rain enter the inlet to the horn would immediately drain out.

The grill would deflect a lot of the oncoming rain. I would like to squeeze them in the front behind the black grill,This will allow the maximum sound from each horn. Should be OK For, there is just a diaphragm under the snail, no water can get into the coil, thats beneath the snail in the horn body. All the best Steve. Your email address will not be published. Plagiocephaly — what is it? Original Single Horn Vito W Fix upgrade twin horns behind grille.

Drivers side horn mounting location. Twin Horn Mounting location behind grille. Mercedes Vito W Horn Location. New twin horns hidden behind grille. Leave a Reply Cancel reply Your email address will not be published.

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