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ML320

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Question
Can ur upper control arms be bad if the rubber is cracked
If you suspect that your upper control arm is not bad, it's best to get a second opinion to be sure. When I diagnose vehicles, I am sure to explain my findings to the customer and let them know what...
Question
Had crankshaft sensor replaced, and car is still stalling when slowing down.
Hello, thanks for writing in. If the engine is only stalling when coming to a stop, then it may be a defective crankshaft sensor that was installed or commonly this is caused by a dirty or failing throttle body. I...
Question
If I disconnect my negative side of my battery and my car continues to run is my allternsttor ok
Do not do this test!! You may damage your computer systems and electronics in the car! This test is an old school wives tail that was used on cars before electronics were used. There are better alternatives for testing your...
Question
The transmission is stuck on either 4x4 or on one gear.
Hello there, a few different faults can cause the vehicle to remain stuck in gear. Most commonly seen is a low transmission fluid level, shift solenoid, valve body, or a transmission range sensor fault. A vehicle that can not shift...
Question
gas hand works after reving to 4000 rpm
Fuel sensing units were a common replacement item with your Mercedes Benz ML320 and that generation ML. In fact, most Benz' of that era have the same issue. Here is something you can try: Turn the ignition to...
Question
Just need to know what maintenance I need - Mercedes Benz ML320
Hello. My listings for the maintenance on this vehicle are as follows: 60k miles: Replace air cleaner, fuel filter, spark plugs 90k miles: Replace air cleaner Also keep in mind that the manufacturer service manuals can be found for free...
Question
Car does not turn on
Hi there. Assuming this is a standard type ignition switch, with the description of events you provided. I am concerned that the tumblers in the lock cylinder may have been damaged, when the half key was turned. The key turning...
Question
Leaking coolant, visible from reservoir. Has crack in reservoir.
Replacing the reservoir and hoses since they are cracked is the first step. The second step is to figure out why the coolant is creating too much pressure in the tank. This may be caused by a variety of reasons...
Question
Car oil needs to be refilled before oil change is due
Hello. If you are losing oil, it is either leaking or being burned. The causes of burning oil would be faulty piston rings that allow the oil to blow by into the combustion chamber or bad valve guide seals that...
Question
Something locked up the wheels
Hello. I would recommend having your suspension and brakes checked. This will include removing the front wheels. With the wheel removed, it will be much easier to determine what the actual cause of the lockup is. The lockup may have...
Question
Mercedes ml320 2001 only go in reverse we checked the fluid its fine it all of a sudden start doing this with no indication of tra
Hello. When this occurs all of a sudden I would usually start by checking the transmission control module for codes. This would let me know if there are any foreseen electrical issues. If there are no codes then the fluid...
Question
Egrcode multiple cylinders misfire
The most likely issue in this situation is with the EGR valve. Problems with the EGR system can lead to misfires. The exact problem with the EGR will need to be diagnosed with some further testing. The EGR valve itself...
Question
The headlights malfunction
The bulbs are xenon type bulbs and they will fade away before they burn out. My suggestion would be to replace both headlight bulbs. This way you do not change one and the other burns out in a few weeks....
Question
EGG code p0400, multiple cylinder misfire, removed and cleaned egr and pipe with no change
Hi there. The P0400 EGR (exhaust gas recirculation) valve code may not be a valve not working. This code description is a EGR flow malfunction. The fact that your vehicle has multiple cylinder misfires leads me to believe the valve...
Question
My ignition and steering wheel got locked. After getting it unlocked, it wont start. System is saying start then an error shows.
Hi there. If you're having problems with the steering wheel and ignition cylinder being locked and the vehicle is having issues starting, the problem may be with the ignition lock cylinder. Sometimes the components inside the ignition lock cylinder can...
Question
When driving uphill the vehicle looses most of power,only goes 25 miles per hour,then shakes when restarting
Lack of power and shaking can be caused by a number of components. Misfiring can reduce power and cause shakes. Misfires can be ignition related like from bad spark plugs or ignition coils. Also from sensors such as the crankshaft...
Question
What is cause of yaw sensor malfunction
I'll agree with the shop on this one. The yaw sensor is a very sensitive device designed to measure the sideways force on a car during a turn and it's part of the Vehicle Stabilization System. It has a small...
Question
The AC compressor on my 1999 ML320 stopped working.
In most cases, it may be the a/c compressor clutch that has stopped working, but it won't hurt to check the fuses. If you do find a blown fuse, something happened along the electrical circuit that drew a higher current...
Question
SUV will not accelerate sporadically and has no power
Hi there: To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you're describing, ranging from something simple like a crankshaft position sensor to the throttle position sensor or complex issues with...
Question
The engine will not turn over. The battery and fuses are okay.
Hi and thanks for contacting Your Mechanic. Since the problem started when you had replaced the battery, check the wires to the battery and make sure that they are not corroded. Also, check the battery cables for they are on...

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