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ML350

Sometimes a motor slowly fails and a hard spot makes it stop all together, sometimes all it needs is a little spray of dry lube. Have a certified mechanic, such as one from YourMechanic, inspect and take the door panel...

This would depend on the code that is retrieved from the check engine light. It never hurts to get a second opinion. I would recommend having another technician, such as one from YourMechanic, come to scan your vehicle for trouble...

Repairing oil leaks requires the replacement of gaskets, seals, and o-rings and such work can be performed on all models by any competent automobile mechanic. Unless you have already received a detailed and authoritative diagnosis (identification) of all the leak...

If the battery (https://www.yourmechanic.com/services/battery-replacement) is new and charged sufficiently (not all new batteries come fully charged), there should not be any problem starting the vehicle. You may want to be sure all battery cables are properly connected and that the...

Hello, thank you for writing in. The passenger (right) side of the vehicle (on yours and a lot of other vehicles) holds a computer system behind the fender (just under the floorboard). This is the box that controls the power...

Hi there. Check the brakes and the wheel speed sensors to see if the are damaged or worn causing the ESP light to come on. A worn brake (https://www.yourmechanic.com/services/squealing-noise-from-brakes-inspection) pad can cause the ESP light to come on as the...

Hello - while it is possible that there are simply loose nuts/bolts for the fan, it is most likely the fan clutch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fan-clutch) is failing, hence the wobbling fan. I recommend a fan clutch replacement (https://www.yourmechanic.com/services/fan-clutch-replacement) as soon as possible,...

If the oil filter housing is integral to the oil cooler, or the housing had to be removed to service the cooler, a professional mechanic with knowledge of the limited service life of rubber seals would have absolutely (guaranteed) replaced...

Hello - yes, a failed camshaft sensor can negatively affect fuel economy. With a failed cam sensor, engine management reverts to a "fail safe" engine timing scheme which is less efficient than when all sensors are working properly. The symptom...

Before having the cylinder head replaced, check the compression on all cylinders. What you are looking for is that the compression is 120 psi or more and the first puff of compression is half of the max puff of compression....

The on board diagnostic (OBD) sets a pending code each time the ECU detects a problem. It confirms the code if it sees the same problem twice. So you're really only dealing with the two codes : P0016 and 17.These...

The problem you are having may be the EIS ECU not turning on intermittently. There is a technical service bulletin from the manufacturer dated 11/29/2012 and the number is LI80.57-P-053608. You will need to dealer or a mechanic that has...

You should have the computer scanned to see if there is codes for cam or crank sensors and if they are sending signal to computer so it will open the injectors. Also check injectors for pulse by the computer. If...

It sounds like the vehicle may be overheating. Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), a clogged radiator (https://www.yourmechanic.com/services/radiator-replacement) or a failing coolant fan switch. As you may know...

Many door locks are controled by a door lock actuator inside the door. This actuator is connected to metal rods that mechanically activate the lock when the actuator moves electronically. It is possible that one of these metal rods has...

It takes a lot of battery to turn a diesel, so if your battery voltage is not 12.6, you need to charge or replace the battery. I don't recommend jump starting the car, because the electrical system may develop problems...

If the crack in the housing is in the plastic part, that can be written off to normal wear and tear. The plastic filter holder gets brittle and cracks easily. Most shops keep them on hand in case this happens...

First you need to see that the fluid level is correct. (https://www.yourmechanic.com/article/how-to-check-your-power-steering-fluid-level-by-jerel-lawrence) Bring the engine up to operating temperature and check the fluid at the reservoir. Top it up with Pentosin CHF11 hydraulic fluid. The fluid gets foamy when it...

If the charging system is not working, that is something that needs to be corrected first. Your car has a whole network of computer modules that will behave very strangely if the system voltage is not correct. Once you have...

If you have another key, try to start it with that 2nd key. If it starts, then the DAS (Drive Authorization System) is good and only the 1st key has lost synchronization. Try this with the non-functioning key: Insert the...