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190E

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Question
Fuel gauge broken.
Your fuel gauge not working could be due to a problem with the sending unit, wiring or the gauge itself. A trained professional, such as the ones YourMechanic, will be able to diagnose and repair your fuel gauge.
Question
Key not working
Hi there. This problem is caused by a lack of mobility in your ignition cylinder. The bumps on your key depress a series of channels in the cylinder in the correct combination in order for it to release it's locking...
Question
Car hard to start and hesitates
Thanks for asking. With all of the work that has been done to the vehicle, I would recommend having a mechanic, such as one of our YourMechanic experts, inspect your starting issue. Your symptoms sound like an air/fuel metering concern...
Question
Valve gaskets need replacing.
Hi. Your cooling and oil systems would need to be checked for leaks. These are two separate issues. The cooling system should not be getting low, except for a very small amount over a six to twelve month period. The...
Question
Car has been sitting and won't start
The car sitting for a year is most likely a dead battery. These cars are known to have loss of memory problems and the systems have to be reset with a factory scanner. I recommend you have a mechanic like...
Question
How do I find out why my car has a huge flat spot
This could be a variety of things related to air and fuel delivery to the engine. There are a few things that are common to go bad and cause these types of problems. If the mass airflow sensor which regulates...
Question
The engine makes a sound when you accelerate it
There are many things that can cause increased engine noise on acceleration. The crankshaft is at the bottom of the motor and if it were having problems, it would make noise all of the time, not just on acceleration. A...
Question
my care will not start and my mechanic told me it is a wiring problem. Is this true?
Yes. Both of these conditions can be true. I know that it is sometimes hard to trust the guy on the other side of the counter. The reality is most of the time a mechanic is not attempting to rip...
Question
After belt replacement, belt tensioner squeaks and is loose
More likely mileage and time wore the tensioner out. The tensioner bearing wears out with mileage - it's good to replace the tensioner pulley/bearing when replacing the belt. The tensioner itself is spring-actuated, and the spring can get weak over...
Question
Engine, power steering, and brakes shut off
Given you had a "sudden" failure, you might check the crank position sensor first. This component instructs the ignition module when to fire the spark plugs. If the crank position sensor is OK, work your way up the electrical path....
Question
After new distributor and testing, car won't start
Confirm the basics first: Does it have spark at the plugs? Does it have compression? Are the injectors firing with proper fuel pressure? One (or more) of these is failing you, and will instruct the correct diagnostic path. A trained...
Question
Driver's side windows do not properly function
If removing the driver door window switch (or the driver-side console switch), and applying direct power to the harness yields successful operation of the window, the problem is the switch that was removed for the test. This can be confirmed...
Question
Engine stalls while turning on the right side, driving on a road bump, or reversing when engine is still cold
Hello, thanks for writing in. I would check the engine oil level and level sensor first as low oil will cause the engine to cut out. If the oil is fine then it sounds like a loose sensor connection. The...
Question
What motor oil do you recommend 5w30 or 10w30?
Hey there. Your 190E holds 5.3 quarts or 5 liters. The weight of oil is determined by the average temperature of the climate you live in. If the temperature is above 70 degrees Fahrenheit, I would go with the 10w30,...
Question
1984 Mercedes fails to start
If the car is not starting because it has no spark, you want to begin in the distributor. Take off the cap and have someone turn the engine over. Is the distributor turning? If it isn't, then you have a...

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