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V8-5.5L

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Question
washer fluid hasn't been coming out nozzles to windshield, yet within 12 hrs "refill washer fluid" notification comes up - leak?
Before replacing the reservoir, you should check the hoses to see if there are any leaks. It could be something as simple as a hose coming loose or breaking. If you are certain it's the reservoir, then I would go...
Question
Automatic Trunk open/close feature not working but button lights up. I soldiered broken wires back together - reset?
Hello, thanks for writing in. Most of the time this is caused by a programming issue with the control module. It usually occurs if the module fails or if there is a loss of power. It can also occur if...
Question
Center console cup holders (rings have fallen off - think cup holder assembly needs replaced
I would suggest replacing it. We, however, do not do this type of service. I do apologize. I do just as you are doing and go through the dealership to get the correct part for your car. Not everyone is...
Question
Does my water pump need to be replaced?
Hi there, thanks for writing in. There are 3 really good ways to check if your water pump needs to be replaced. First, visually inspect around the water pump looking for any signs of a leak. Water pump leaks,...
Question
Water Pump
If your water pump is going bad this can have many effects on your heat and air conditioning system. If the water pump is leaking this will cause the coolant level to go low. When this happens the heating system...
Question
Car will not start - 2010 Mercedes E550
Hi there. The job of the starter relay and the fuse that supplies power to it, is to activate the starter motor to spin when the ignition circuit has been activated. Since you've hooked up a battery (by attempting to...
Question
Check pad ware light came on
The light will come on when the brake pad is worn down to the minimum thickness and should be inspected right away. If you would like, a YourMechanic, certified technician can come and diagnose the brakes and quote the needed...
Question
changing steering wheel
Hi there. Unfortunately, we are unable to provide estimates on a steering wheel change since we do not perform this service. Your best bet will be to go to a Mercedes-Benz dealer and have them advise you on the possibility...
Question
Suspension
If the car was low and that's the reason the compressor and valve block were replaced, odds are the air struts themselves were damaged from sitting low. One or more strut is most likely damaged and leaking, not allowing the...
Question
I feel a pulsation through the wheel while making tight turns at a low speed. I have owned the car for 4 months
Hi, thanks for writing in. Since you feel the symptoms through the steering wheel during left turns, the problem is likely in the right front tire. The right front tire takes most of the load in a left-hand turn. Possible...
Question
Car cutting out when slowing down
This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...
Question
How much is steering wheel airbag? 2007 Mercedes S550
Hello - unfortunately, that is not a service YourMechanic can offer at this time. Thanks for thinking of us though!
Question
Mercedes engine is trembling
Hello. Your issues may be related to the throttle actuator that was alarming in the first place. If they know for a fact the throttle system as a whole is perfect, the next step would be to look into the...
Question
Hazard lights will not go off
Hi there. Check the switch to the hazard lights and see if the switch got stuck. Sometimes the switch tends to stick and make the hazard lights stay on. If the switch is working, then the contacts in the switch...
Question
Shaking in steering wheel at 120/km
The most common reason for a vibration while driving is a tire issue. The tires may be out of balance, or just worn to the point that they will cause this. Typically, the brakes won't cause this, unless it happens...
Question
Are my locks causing my battery to over night?
This may be a sign of a failing voltage regulator or a failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine...
Question
My car fan runs on 2 speeds - can I replace the radiator fan resistor?
Hello - I believe this is normal behavior, and handles cooling the engine down appropriately (i.e. fan speed changing based on how hot the engine was when running) upon shutdown. There are problem cases where the radiator fan runs on...
Question
Transmission not operating correctly and stops working on when coming to a stop.
Hi there. The transmission drive selector module may have failed causing the transmission to not shift or go into gear. This is a common issue with the 2007 Mercedes-Benz vehicles. Check the wiring harness on the transmission to see if...
Question
Vibration from passenger side front wheel.
Occasionally, you will be able to measure enough play in the bearing that you can condemn it without further testing. You have to check the factory spec. to see what is allowed and will have to use a dial indicator....
Question
Rear battery isn't charging.
If you had the key on for an extended period of time without the engine running, you may have run the accessory battery down. It really should last longer than a car wash though, so maybe it needs replacing. Your...

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