aollaku

Hi folks. I have a MB W210 E300TD 1998. I have a strange problem when the engine is warm. When i put in N or P that it shake a littel, but if i put it on D or i turn the Climate Controll on the shake disapire... Its very strange... Pleas can you give me an idea what is going on on my MB... Thnx

raymond g-

try different RPMs under varying conditions with vehicle stopped. my first guess: motor mounts

aollaku

I have checked motor mounts and they look good... There is no shake when i push the gas pedal (higher rpm)... its everythiing ok only in idle without AC...

kajtek1

I ditto MM.
They are very hard to judge unless you find the way to measure the height.
But those hydro MM are not long-lasting, so if in doubt - replace them.

aollaku

OK... I will try to replace them...

aollaku

But even the rpm move on dashboard when is in idel... they shake to... So i dont think there is any relation betwen motor mounts and the rpm on dashboard

kajtek1

When your idle fluctuated, start with checking for air bubbles in fuel tubings.

Plutoe

Your being given the two shoe shuffle-----do a leak oil test, then do a compression test. The tests will confirm injector and or cylinder condition.

aollaku

There is no power loose, milk trace in the cooling system or black/blue smoke... I have just spoke with a mechanic and he say the is in the FIP (Fuel injection pump). He put the water outside the pump when engine was warm for about 10-15 min with engine on and the shake (rpm to) disapear... He say that i need to replace my whole fuel presure pump... Can i do something with the pump or my only posibility is to replace that part....

kajtek1

Those IP are bulletproof so chances that you need one are next to nothing.
Water running over leaky fuel lines will seal the miniature leaks as water is more dense than diesel and definitely more dense than air.
Find a mechanic who can actually find the problem or DIY.
Post the picture of your fuel tubings.

aollaku

But there is no fuel leaks... I have searched.. but anyway i will make a pic of lines that goes to the pump and in fuel filter then post here....

aollaku

But why this happen only when the engine is hot... and the vibration disapear when i turn on the climate control....

kajtek1

Some of fuel lines operate with vacuum, so leak means air in fuel, not like with gasoline fuel leaking outside.
Temperature and load affects the engine management, so it can make the difference how engine vibrate.
Still - get on the job and don't overthink the issue.

aollaku

Ok kajtek1. I made 2 pic and a short video in the fuel line part near the filter and the pump. You can jugde yourself if there is air or leak...

kajtek1

You need to check for air bubbles at high idle.
Anyway, your tubings are yellow/brown when they should be clear.
Your leak hose has bad cracks and shows wetness on it, what likely is diesel penetration.
Last time I check set of tubings run about $60 so not a big deal and you really need new lines. Also get new SOV oring.
Also get the grommet for booster vacuum pipe. If the pipe get cut, you will be for nasty surprise.

aollaku

Sorry ca you provide me a link for the fuel pipe & SOV oring because i cant find anywhere... Thnx

kajtek1

http://www.benzworld.org/forums/w210...-thread-2.html