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S500

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Question
Driver door hissing
Hello. It sounds like the weather stripping on the driver's side door is worn out or missing and would need to be replaced. The soft touch pad needs to be replaced as well. I would have the door inspected by...
Question
not shifting into 2nd gear
Since you said your Check Engine Light is on, the first thing I would recommend doing would be to have a qualified professional use an OBD2 scanner to pull the trouble code that is produced when your Check Engine Light...
Question
stuck in first gear
For this issue I would first recommend having your transmission inspected by a certified professional. There are a number of things including faulty shift solenoids, low fluid level, or catastrophic damage that could be causing your transmission to have these...
Question
key won't start engine
It is possible that you could have one of two issues. You could be experiencing a bad alternator problem that is causing your battery to be drained and become faulty well before it should be. In this case, I would...
Question
Hesitation over 45 mph
Improper air metering or fueling can hinder engine performance. A clogged fuel filter can offer enough fuel for an engine to start, but lack in enough volume for higher loads. Have an experienced technician look over the vehicle fueling and...
Question
Shift knob gets stuck in gears
The shifter knob shift mechanism may be loosing contact and needs to be replaced. The switch will need to be tested and monitored using the Mercedes scanner. If the switch gives erratic readings when scanned and while the switch is...
Question
Car is burning antifreeze
If your car is overheating, smelling like coolant, and always in need of coolant, then those are signs that you may have a coolant leak somewhere. The smoke you are seeing may be antifreeze leaking out onto hot parts of...
Question
Q: Transmission in limp mode
The transmission control module (TCM) takes inputs from numerous sensors. It then uses this information to control various transmission related outputs such as shift solenoids and the torque converter clutch. The TCM will go into limp mode when it loses...
Question
Head gasket gone
If your head gasket has gone bad, stop driving the vehicle as soon as possible. A head gasket replacement does require removal of multiple engine parts to replace and is usually a costly repair. This is why many people decide...
Question
Q: WONT START
There are two common items that can cause an intermittent no start with this car. You already replaced the crank sensor, which is one of them. The other can be the key, and/or the Electronic Ignition Switch (EIS). If...
Question
My car starts idol fine runs for four seconds maybe six seconds then shuts off
Hello. There are a few problems that can cause this. If there is the correct fuel pressure and if there is compression, then the sensors need to be checked with a scan tool to see if any of them are...
Question
One of my car's headlights does not work
Hello. There are 2 devices in the front wiring of your vehicle called "Signal Acquisition Modules." One is for the left side of the front, the other is for the right. They act as an electrical "router" and power distribution...
Question
Is it a good car to buy? Mercedes-Benz S500 of year 2001 with 138000 miles.
I would suggest checking the Kelly Blue Book website with specifics related to your zip code as market prices of cars vary by zip code. This will give you a baseline for determining whether or not the car is within...
Question
How long does it take to replace the control arm assembly in a Mercedes-Benz S 500?
Hi there. The time for removing and replacing a control arm on a 2000 Mercedes-Benz S500 ranges between 4 to 6 hours depending on the persons experience and if the parts come off easy or not. If you need further...
Question
Temperature gauge problem on a 2005 Mercedes Benz S500
Hello - I would first check for problem codes, whether the Check Engine light is illuminated or not. And, if the engine is not really overheating, the problem is most likely the engine temperature sensor (the sensor for the gauge,...
Question
I have a. 2000 Mercedes Benz S500. It suddenly won't go into reverse. What should i do? 2000 Mercedes S500
Hello - your Mercedes transmission is in "limp mode". Something has failed in the transmission, and it has engaged 2nd gear as a limited means of getting you to a repair shop. If you could forward the specific codes which...
Question
I replaced my DCM unit but problem is only solved with Car in on position
Diagnosing this issue requires the Factory Service Manual and the wiring diagram at minimum. If the turn signal circuit is not working when the vehicle is on, and it is wired through this DCM, that circuit is simple enough that...

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