Is it possible to put so much mile in 5 months?

ANSWER : Hi there:

I doubt the vehicle was driven over 100,000 miles in less than a year. Most likely what happened is that the vehicle’s OD was not inspected by the DMV in New Jersey the first time and the owner ’altered’ the mileage either on purpose or by mistake.

ANSWER : Hello, thank you for writing in. The shields that are mounted on the bottom of the car provide the most protection from water and road debris. While they do provide this protection, failure of the rack and pinion should not have occurred after being exposed for 5 months. If weather conditions in your area are extreme right now, that may be a factor to consider, but you need to look into the situation a little further. Check to see if the rack was new, used, or re-manufactured when it was put in. Verify what kind of warranty the unit came with if any, and find out why the heat shield was not reinstalled. The company will have to take some responsibility for that. If the unit was used, it may not have a warranty, but any new or re-manufactured parts (used but rebuilt) should have a warranty. Between the manufacture of the rack, and the shop who did not reinstall the shield, you should be getting assistance somewhere along the line in replacing the unit again. For more help replacing the unit, or getting an inspection of the problem, contact our service department about scheduling.

ANSWER : This calculation your car performs is a constantly varying calculation due to a couple of things. One part of this calculation is based upon the driving habits of the driver and how the throttle is used in combination with how much fuel is left in the tank. The computer calculates a running average of the fuel used relative to how much fuel is in the tank. As you use more throttle consistently, this average mileage to empty calculation goes down. However, if you feel something is definitely out of the ordinary, have a certified technician, such as one from YourMechanic, diagnose your car’s fuel mileage issue.

ANSWER : Hello.

That is unfortunate that you are located out of our range. I would call your local shops and ask them what the cost would be to replace your camshaft position sensor, as different shops charge different labor rates.

ANSWER : There is a possibility the new module is faulty, but there may be something else going on with the car as well. Wiring can be an issue with these vehicle so consider hiring an experienced technician like one from YourMechanic to loo at the car and offer a personal diagnosis. You can have bad knock sensors offering false readings or some faulted wiring.

ANSWER : The 2012 is sensitive about how much oil is in the engine. If it has been overfilled, you probably have oil in the exhaust system and the crankcase vent system. The first thing you need to do is make sure the oil level is correct in the engine. Once that has been verified, check the air cleaner for oil and clean it out if necessary. After that, the only thing to do is get on the highway and drive. Around town might not do the trick because the exhaust temperature may not stay up. so just get on the highway and drive ten or twenty miles. The smoke will stop when all the oil is burnt out of the exhaust. If you’re not sure about the oil level, or if you just want to delegate this job, contact Your Mechanic to have a technician come to your home or office to sort out your Mercedes for you.

ANSWER : If the water pump is not leaking, I would recommend replacing it when it begins to fail. If the water pump is part of the timing belt job and was not done, this will likely cost the same amount as the timing belt cost as the timing belt will require removal again in order to replace the water pump. Due to the high cost of this repair, I would recommend holding off on the water pump unless it shows signs of failure such as leaks or noise.

ANSWER : Large external leaks can be readily diagnosed. I suggest you just request an oil leak diagnostic and the responding certified mechanic will get this taken care of for you. It’s possible to have multiple leak points on a engine and as many as possible should be resolved. On some engines, though, there are inaccessible seals that require engine removal to service. In your case, inasmuch as the leak is so large it might be from the front crankshaft seal. If that seal has major damage, you will get a big leak like that. Those seals often have a relatively short life. But, all the engine seals, and gaskets, have to be checked as perhaps the valve covers leak, too. If you request the leak diagnostic the mechanic will get this resolved for you promptly. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.