Mercedes s class electrical problems

Worried about potential repair costs? An extended warranty can provide peace of mind. See our lemon pivot function matlab and nada odds page to see vehicles with no repairs or vehicles with more than three repairs.

To see how frequently Mercedes-Benz S-Class problems occur, check out our car reliability stats. All years. Mercedes-Benz S-Class repairs by problem area. Mercedes-Benz S-Class electrical repair cost distribution.

See most expensive repairs Worried about potential repair costs? Chart based on 52 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

Troubleshooting an Electrical Problem

MBUSA was useless in the repair of it. Key replaced and software updated. Replaced mirror motor under warranty. Update window control module computer. New blower and relay installed.

Drive side vanity light bulb.

mercedes s class electrical problems

Driver side vanity light switch. There is a NEW hose design to correct original defect. System recharged by the dealer and dye added to try and find leak.

Brushes were warn and unit replaced. Had to replace the AC compressor, serpentine belt and recharge system.Image by LuxuryDaily.

Mercedes-Benz S-Class repairs by problem area

Here in central Texas, it is no surprise that we experience extreme temperatures and drought conditions far more sever then other parts of the world. This is especially true as compared to the typical climate of Germany, where your Mercedes Benz was designed and engineered.

These conditions not only affect your vehicle and us drivers, but also affect the rodents that live around us. Here in Austin, we have an abundance of these rodents especially in heavily wooded urban areas such as Rollingwood, Westlake, Hyde Park and Tarrytown. In the heat of the summer, the inverse is true as your Mercedes Benz provides a cool shaded place for rodents to nest. At German Auto Center, we find rodents seem especially attracted to the wire coatings on engine and wiring harness and coolant system components such as expansion tanks that contain engine coolant antifreeze.

Rodents often chew on these components in multiple places often causing intermittent electrical issues that are challenging to diagnose and correct. First, if you have pets, do not store your pet food in the garage with your Mercedes Benz. At German Auto Center, we have found pounds of dog food, dry cat food and pet treats squired away in engine compartments.

Second, look for any signs of rodents being present. Typically, you will find some traces such as animal food or treats in places they do not belong, grasses that have been brought inside for nesting, or rodent pellets droppings. If you see any of these signs, bring your Mercedes Benz to German Auto Center for further inspection. The excessive heat that we experience combined with engine heat can prematurely cause the wire covering to become brittle causing cracks.

This can lead to wires short together or to the body of the vehicle, leading to arcing causing further damage to the vehicle wiring. More extensive test equipment is required to test for voltage draws or shorts.

These systems have been an area where we at German Auto Center have seen a host of recurring issues. On most models, the navigation optional and radio head unit have been prone to failure. The radio head unit is mounted in the dash and depending on options, may have a large panel display integrated with the unit. Once diagnosed and isolated from other components such at the GPS antenna and amplifier, the head unit and navigation unit can often be repaired saving hundreds of dollars over replacement.

This includes any break in the electrical or optical networks within your Mercedes Benz. One of the single most important things that you can do to keep your Mercedes Benz headlights working properly is to ensure you have the proper bulbs installed. Not all bulbs are created equally. Please see the technical blog at www. Brass based bulbs should be avoided as the resistance of the brass base can cause excessive heat build up in the plastic plug adapter causing it to distort permanently damaging the light assembly.

If you have not priced a light assembly for your Mercedes Benz, some of these can cost in excess of a thousand dollars to replace. Common failures such as pixel drops can often be repaired by taking the instrument cluster out of the vehicle. For security and theft prevention, instruments clusters cannot easily be replaced. Some electronic components on your Mercedes Benz are designed to fail. Brake sensors should always be replaced when brakes are replaced on your Mercedes Benz. These sensors cannot be repaired and will trigger a brake warning until they are replaced.

Mercedes Benz has located the electronic control units and related wire harness under each of the front two seats. Take steps to keep the floor of your Mercedes Benz clean of foreign objects that might damage the underside of the seat. Although at German Auto Center we see many other electrical issues related to improper stereo and accessory installation, bumpers being caught on curbs, horns, airbags and seat controls, we have just listed a few of the more common failures.

Please visit us at www. We look forward to seeing you.

mercedes s class electrical problems

German Auto Center is owned and operated by Len Gilmore.Driving a Mercedes Benz is a great pleasure. This might have happened to you. If your model has an IR-equipped key fobit may need to be reset see below to communicate properly. This can happen if the EIS is damaged or if it does not recognize your key as valid. The crankshaft position sensor is one example.

If these sensors are damaged or disconnected, the car will refuse to start. As noted above, a battery replacement will frequently solve this problem. To determine whether or not your problem is with the battery — without going to the expense of buying a brand new one — use another car to jump start your Mercedes. If you have backup ignition keys, give them a try. If the issue is a lost signal between the fob and the EIS, you can force a manual reset by placing the key in the ignition and leaving it for five minutes.

Could you turn the ignition key all the way to the start position? Did you hear any signs of life whatsoever when you attempt to crank the engine? Repair Mercedes Benz Electrical Ignition System As noted above, a battery replacement will frequently solve this problem.I visited with Ryan my salesman back in July, to see if it were to be beneficial for me to turn in my lease 10 months early.

At the time I decided that it was not. Ryan and I developed a trusted relationship during that meeting that continued via follow up emails. I communicated to him that I would be back and lease from him before May, I did just that!! Myself and my husband are very pleased with Love Chevrolet in Inverness, Florida. Ryan and the entire staff were friendly,professional and made us feel very comfortable without any high pressure sales tactics. I now lease a Pacific Blue, Chevy Equiox and we love it.

Kind regards, Michele Randall. Accident History: This vehicle has 1 reported accident. Number of Previous Owners: This vehicle has multiple reported owners. Usage Type: This vehicle was leased by an individual. At Doral Lincoln we take pride in everything we do and strive to not only to be the best Florida dealership but to be the best in the nation.

Before you sell your trade let one of our Sales consultants offer you the most for your car without the hassle. Valid only to internet customers who provide printed offer. Not valid in conjunction with any other offer. Price is subject to change without notice.

If you want to buy a new go to Doral Lincoln. Accident History: This vehicle has 0 reported accidents. Usage Type: This vehicle was part of a corporate fleet. The following items have been reconditioned on this vehicle: all new tires! Best of all the price you see is the price you pay. No haggling. No back and forth. No pressure. And this price is so good it is guaranteed.

Mercedes Electrical Problem Fuse Keeps Burning Out: Isolating the Source of the Short

Well-known by many, the S-Class has become a household name in the realm of quality and prestige. Low, low mileage coupled with an exacting maintenance program make this vehicle a rare find. Added comfort with contemporary style is the leather interior to heighten the quality and craftsmanship for the Mercedes-Benz S-Class S Now, Mercedes-Benz is setting its sights on making its flagship vehicle a standard in fuel economy and reduced emissions as well by adding the diesel engine this year to the hybrid system it introduced last year.

Sport-driving fans need not worry, though, as the AMG-tuned models continue to deliver high horsepower in a luxury wrapper. Subject to certain terms and conditions. See store for details. Some restrictions apply. Excellent experience, from negotiation to picking me up at airport to explaining options. Highly recommend this dealership. Number of Previous Owners: This vehicle has 2 reported owners.

Usage Type: This vehicle was used by an individual. The following items have been reconditioned on this vehicle: new brakes! Hands down the best experience I've ever had buying a vehicle.We receive numerous emails asking for help troubleshooting electrical problems.

These types of problems are very difficult to diagnose via email. Shorts and open circuits are almost impossible to diagnose remotely. Many times it can be more than one problem masking the diagnosis. Often, just replacing a part will not fix the problem as there is usually an electrical reason why the problem surfaced in the first place. On the other hand it can be something as simple as replacing a fuse! Electrical testing tools and wiring schematics may be needed as well as a good understanding of automotive electricity.

If you lack the above, we recommend you take the car to a good auto electrician in your area in most cases it does not need to be a Mercedes specialist. I know finding the problem may not be easy.

That is the nature of electricity. Hope this does help. Troubleshooting an Electrical Problem. Unknown battery drain, electrical shorts, blown fuses - these can be difficult to isolate! W W W W W Sedan. W W Coupe. If you decide to tackle the problem on your own here are a few additional recommendations: Use the solutions finder to search for electrical problems, parts, and repair kits. Often Kent's description of the problem includes information on diagnosis.

Almost every repair kit or part we sell explains the problem that it is fixing! If you want to learn about the tools and techniques needed to diagnose difficult electrical problems refer to Kent's video manuals on electrical troubleshooting.

If you are having problems blowing fuses, first learn every circuit related to that specific fuse. They are listed inside the fuse box on the paper insert. Start disconnecting or unplugging one circuit at a time until the fuse no longer blows.

Mercedes-Benz Overview

A good electrical repair shop can test a motor for you. If the problem is you are not getting power to a component or circuit, first check with a 12 volt meter that you are getting power to the fuse at the fuse box. Make sure you are testing the correct side of the fuse holder. Just because a fuse looks ok does not mean it is making good contact. Replace the fuse to be sure. If there is no power to the fuse in question, it could be your ignition switch is bad.

Low battery voltage can cause all kinds of problems especially on and newer models that use various electronic computer controls.

Take your car into any good auto parts store and have them test your battery under load and voltage output with everything turned on and the engine running.Mercedes Benz S Class owners have reported 82 electrical system related problems since Table 1 shows the 11 most common electrical system problems. The number one most common problem is related to the vehicle's instrument panel 26 problems.

The second most common problem is related to the vehicle's electrical system 17 problems. For details of each of the problem category, use the links in the table. On starting the vehicle, the instrument panel was black without illumination or reading. Read details Instrument cluster failure. Taken to dealer and I paid for rebuild to unit. Identical failure occured again after approx 3 months. The fuel injection wiring harness has insulation that is badly cracked and flaking off causing fault codes and poor running.

The body harness has cracked insulation as well. While this is an older car it is low miles and has spent its life stored indoors. I have a model amc car. The VIN was not included in the recall. Car Problems. Table 1. The Instrument Panel problem On starting the vehicle, the instrument panel was black without illumination or reading.

The Dashboard Failed problem Instrument cluster failure. The Wiring problem The fuel injection wiring harness has insulation that is badly cracked and flaking off causing fault codes and poor running. The Dash Wiring problem : the contact stated the instrument cluster malfunctioned. Instrument Panel problems. Electrical System problems. Dashboard Failed problems.See the Back button — blue bar at the very top of the page — to explore more.

Add your complaint? Back S Recalls 5 Defect Invest. Instrument cluster is not working. Only 20, miles since owning the car since The recall for similiar car with same issues but they said not this car.

Add Complaint. The contact owns a Mercedes Benz S The contact stated that while driving at 25 mph, the vehicle stalled without warning. The vehicle was taken to an independent mechanic where it was unable to be diagnosed.

The vehicle was not repaired. The manufacturer was not notified of the failure.

Problems and Faults with the W221 S Class

The failure mileage was approximatelyThe VIN was not available. I was driving on the freeway at 60 when I noticed that my dashboard is dark and I can't see how fast I was going. Then after a while, the light went on again. And this on and off incidents happens every day from the first day. In reference to campaign 06V what is the basis for exclusion of some cars of the same year vs others" just because the 7 cars that were part of the orginal complaint fall in the narrowly defined VIN range does not mean other cars of the same model and year do not have the same problem.

The defective clusters are the same.

mercedes s class electrical problems

I have a S with a failed cluster. I have the same problem with the same part for the same model and year that other cars are being repaired for free, but my car is excluded because its VIN range is statistically not in the same narrow VIN range corresponding to the original complaint" this seems very exclusionary given my car is the same model and year and the part is the same and there is no basis to exclude it.

I am requesting NHTSA to widen the recall range to be fair to all owners of the same model and year where some are being recalled and some not.

I request you to please widen the recall. The contact stated that while starting the ignition, the entire instrument panel cluster failed to operate. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage wasBad instrument cluster, had a recall and wont replace. Dash lights out, losing speedometer and all instruments. The dash panel cluster controls so many functions that control of the vehicle becomes dangerous especially at night.

Manufacture has treated problem as a warranty issue but it should be recalled before someone gets hurt. The contact stated that the instrument panel failed. The failure affected the all of the gauges, turn signals, head lights, the horn and prevented the contact from being able to open the trunk.


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