Skip the auto shop - Our mechanics make house calls

Q: My old Mercedes is shaking back and forth at 80kmh and then stalling

asked by on

Its a 1984 Mercedes Benz 200 which idles perfectly but when u get up to about 80kmh it starts to yank back and forth really hard almost like something is tugging it forward and the back, it does that and then stalls after 10 sec no mater what u do ... Ifyou then turn the key it starts up just fine and runs normally until u get back up to 80 then it does it again ... it has been driven gently al its life and have been really taken care of .

My car has 260000 miles.
My car has a manual transmission.

A: What you have described, back in the old da...

What you have described, back in the old days, are classic symptoms of a fuel pump failing or a clogged fuel filter. The pump can move enough fuel to keep the car going at slow speeds, but the engine starts to starve when you really put a demand on it. But the fuel pump may not be the only issue. The old Mercedes had a fuel tank screen that could become plugged with rust, not allowing the fuel pump to draw enough fuel to keep the engine happy. The screen is accessible through a plug in the bottom of the tank. Cleaning it is a miserable job, though, because you have to deal with all of that gas pouring out of the bottom when you take out the plug. If you decide you don't want to take the job on, have a technician inspect your car's acceleration problem and check the fuel pump for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car battery overheating

This is a safety hazard and should be addressed by a certified mechanic. Battery's hold down brackets often become loose and can get caught between the battery's posts causing a short. This can mean a wiring problem that can involve...

Q: Fuel Mileage

Hi there. When the engine and fuel system is running efficiently, fuel mileage is actually driven by the driver. The smoother they are with applying the throttle, the more efficiently fuel will flow through the engine. However, when the motor...

Q: Back wheels shaking

Hi there. This problem of a shaking wheel is due to a couple possible issues. First, you may be experiencing an issue with your wheel bearing. This is what keeps your wheels turning true without any extra side to side...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...