[Viraat13]

Originally Posted by abhiram7912

Some more questions for you guys who own / used to own a 250D, is the engine noise prominent inside the cabin say at 50kmph? can one hear the engine in cabin while running with windows/doors closed? How can you tell if the engine mount is worn out / in bad condition? I am asking because my car feels a little rough, i don't know if its the awful roads on the approach to my residence that are causing this or something else. the gear shifter also slots in rougher than earlier. I got the engine serviced recently roughly 600kms earlier.

Check the gearbox mounts, and the shift lever bushings for the rough shifting.

As for the other problem. Worn engine mounts result in the car shaking and jerking when you first start it, and if they're in terrible shape, then you will feel vibrations throughout the car. There should be no noise at 50 kmph. In fact, I feel that the E250D is the better insulated of the two that were sold here. The reason for the excess noise could be an air leak in the diesel system. Has your car been taking a long time to start? Check the manual shut off valve in the engine compartment. See that it is not too open, as that will supply excess air. When was the last time you got the O-rings replaced in the fuel system? What about the pipes coming and going from the diesel filter? Any one of these could have a cut, which would explain your problem. Sometimes they don't need to be replaced, it is just that they have split or hardened (or both) where they are connected/mounted and that is allowing a leak.

You mentioned that you got the car serviced recently did you get any of the stated work done along with the service? In which case this is going to sound silly, but the car does become a little noisy for about 500 to 700 kms after getting this done. Wait for sufficient carbon to build up, and all will be fine. Maybe add 1/2 a litre of engine oil (mineral, not synthetic) with a full tank of diesel to speed up the process.

Another downside of diesel leaking from the pipes around the filter is that diesel destroys rubber, and in the E250D, leaking diesel always reaches the engine mount on the right (when facing the car), which then hardens and causes further problems.

Let me know if I can help you further.

[abhiram7912]

Originally Posted by Viraat13

Check the gearbox mounts, and the shift lever bushings for the rough shifting.

As for the other problem. Worn engine mounts result in the car shaking and jerking when you first start it, and if they're in terrible shape, then you will feel vibrations throughout the car. There should be no noise at 50 kmph. In fact, I feel that the E250D is the better insulated of the two that were sold here. The reason for the excess noise could be an air leak in the diesel system. Has your car been taking a long time to start? Check the manual shut off valve in the engine compartment. See that it is not too open, as that will supply excess air. When was the last time you got the O-rings replaced in the fuel system? What about the pipes coming and going from the diesel filter? Any one of these could have a cut, which would explain your problem. Sometimes they don't need to be replaced, it is just that they have split or hardened (or both) where they are connected/mounted and that is allowing a leak.

Ok there are no vibrations when starting the engine. so i guess engine mounts are good atleast for a while. Well the SA at the recent service was telling me something was wrong with the FIP and that should be repaired and it was causing the late start.

You mentioned that you got the car serviced recently did you get any of the stated work done along with the service? In which case this is going to sound silly, but the car does become a little noisy for about 500 to 700 kms after getting this done. Wait for sufficient carbon to build up, and all will be fine. Maybe add 1/2 a litre of engine oil (mineral, not synthetic) with a full tank of diesel to speed up the process.

Only electrical (lighting and wiper related). I think they only changed the engine oil and the filter (bill attached). actually i noticed the engine noise before the service as well. I did not get all the work done to my satisfaction as i was out of town. I started using the car for the last month approximately, so dont know if it was like this before.

Another downside of diesel leaking from the pipes around the filter is that diesel destroys rubber, and in the E250D, leaking diesel always reaches the engine mount on the right (when facing the car), which then hardens and causes further problems.

Let me know if I can help you further.

I am going to give the car in next week probably to get the combination switch (wiper, lights) replaced. so will ask the SA to take a look at them.

[Viraat13]

Originally Posted by abhiram7912

I am going to give the car in next week probably to get the combination switch (wiper, lights) replaced. so will ask the SA to take a look at them.

You might just need a FIP service if the car has been sitting idle for many months. Even otherwise, the pump does require a service now and then.

[abhiram7912]

Originally Posted by Viraat13

You might just need a FIP service if the car has been sitting idle for many months. Even otherwise, the pump does require a service now and then.

OK will get that done. Do you think some one who repairs german cars (say VW, skoda) take a look at the manual shut off valve or air leaks in engine. I am asking because the Mercedes ASC in Vijayawada, where i am currently, doesn't have a mechanic that can work on the car and i have to take it to Hyderabad. Couple more questions :

1)What tyre pressure do you guys recommend ? the tyres are goodyear NCT5. currently i am putting in 20 or 25. but i can feel the car "hopping" ( car feels a bit jumpy). The card on the fuel filler door quotes something >35, but i think its too high. I am the only person in the car when driving if thats any help (no luggage).

2)How much does a combination switch (indicator, wiper) cost ?

[Viraat13]

Originally Posted by abhiram7912

OK will get that done. Do you think some one who repairs german cars (say VW, skoda) take a look at the manual shut off valve or air leaks in engine. I am asking because the Mercedes ASC in Vijayawada, where i am currently, doesn't have a mechanic that can work on the car and i have to take it to Hyderabad. Couple more questions :

1)What tyre pressure do you guys recommend ? the tyres are goodyear NCT5. currently i am putting in 20 or 25. but i can feel the car "hopping" ( car feels a bit jumpy). The card on the fuel filler door quotes something >35, but i think its too high. I am the only person in the car when driving if thats any help (no luggage).

2)How much does a combination switch (indicator, wiper) cost ?

You should ideally visit a Mercedes specialist. But this is an old school diesel engine, and in the worst case scenario, you can visit the other guys for a check.

How old are your tyres? You should be using 30 all around. Get yourself a pressure gauge to ensure the accuracy. Most fuel pumps and garages have poorly calibrated gauges.

You ought to check autohauz for the information. They deliver in India too.
It is 96 USD for one manufactured by Meyle and 111 USD for the one by Mercedes.

[abhiram7912]

Originally Posted by Viraat13

You should ideally visit a Mercedes specialist. But this is an old school diesel engine, and in the worst case scenario, you can visit the other guys for a check.

Yeah I understand. but cannot drive 300kms to get it checked and the car is driving me nuts with small problems that should have been solved really easily, but got complicated due the incompetence of my previous drivers.

How old are your tyres? You should be using 30 all around. Get yourself a pressure gauge to ensure the accuracy. Most fuel pumps and garages have poorly calibrated gauges.

I just checked the tyres and the date printed on them is "FEB05" all of them. they still look like new tyres. Got the tyres filled with 30 all round, but still the hopping thing is present. Have to get new tyres i think.

There is a Bosch service centre here will get it checked with them. I am also speaking to the SA at Mercedes ASC in Hyderabad to see if there are any good mechanics who can work on these in Vijayawada.

[Viraat13]

Originally Posted by abhiram7912

There is a Bosch service centre here will get it checked with them. I am also speaking to the SA at Mercedes ASC in Hyderabad to see if there are any good mechanics who can work on these in Vijayawada.

I didn't mean you visit the Benz service centre, I meant you visit a mechanic who specialises in old Mercs.

Yep, you probably need new tyres. Did your car spend a lot of time standing? That would explain why the tyres have developed flat spots, causing the bumpy ride.

The Bosch service centres in Delhi are pretty good, you will probably be able to get your car fixed there.

[Ravindra M]

Originally Posted by DeepakMenon

MB Part : A0005403817
BOSCH: 0258003314

Hi Deepak, since you are quite resourceful for anything related to W124, please help me here. Can you please share some details on the diesel fuel injection pump and associated electronic / pneumatic controls. Although it is mechanical pump, there seems to be a relay named anti-jerk relay ( named as ARA, part number 0065458732 ) associated with it. I need to understand what are the inputs and outputs of this relay and how does it control the pump.

[DeepakMenon]

Originally Posted by Ravindra M

Hi Deepak, since you are quite resourceful for anything related to W124, please help me here. Can you please share some details on the diesel fuel injection pump and associated electronic / pneumatic controls. Although it is mechanical pump, there seems to be a relay named anti-jerk relay ( named as ARA, part number 0065458732 ) associated with it. I need to understand what are the inputs and outputs of this relay and how does it control the pump.

I am zero in Diesel, the only thing I have with ARA mentioned is on this link

http://www.w124-zone.com/downloads/M.../07.1-1840.pdf


What I know is it stabilizes the idle; what are you facing as a issue

If you know its ARA, just replace it

[DeepakMenon]

Originally Posted by Ravindra M

Hi Deepak, since you are quite resourceful for anything related to W124, please help me here. Can you please share some details on the diesel fuel injection pump and associated electronic / pneumatic controls. Although it is mechanical pump, there seems to be a relay named anti-jerk relay ( named as ARA, part number 0065458732 ) associated with it. I need to understand what are the inputs and outputs of this relay and how does it control the pump.

PM sent, need your email

[Ravindra M]

Originally Posted by DeepakMenon

PM sent, need your email

Thanks. I have PMed my mail id.
I have no issues with engine, just that I have seen this relay and would like to know how it works. The name is quite fancy "anti-jerk relay". Good old Merc diesels and some clever tricks using minimal electronics to make them even better - I am loving it !!

[sportz_kruzer]

Can any one pleaee help me source the clutch hose for the E220? Looks like this. Mine has started weeping from the joint and its a matter of time it will fail and leave me stranded. Would really appreciate if anyone can help me out..thanks!

[DeepakMenon]

Originally Posted by sportz_kruzer

Can any one pleaee help me source the clutch hose for the E220? Looks like this. Mine has started weeping from the joint and its a matter of time it will fail and leave me stranded. Would really appreciate if anyone can help me out..thanks!

DO you have the part number?

Call Jatin Patel, he will be able to source it for you

There will be a wait period, as these parts may not be stocked, and avoid no MB

[sportz_kruzer]

Originally Posted by DeepakMenon

DO you have the part number?

Call Jatin Patel, he will be able to source it for you

There will be a wait period, as these parts may not be stocked, and avoid no MB

Thanks deepak, I dont hve the part number, ill try to find it on Google. Do MB dealerships sell the part over the counter. .or would I have to take ot there for service? If so I am sure they will charge me a bomb!

[Viraat13]

Originally Posted by sportz_kruzer

Thanks deepak, I dont hve the part number, ill try to find it on Google. Do MB dealerships sell the part over the counter. .or would I have to take ot there for service? If so I am sure they will charge me a bomb!

They might sell it over the counter, but the mark ups are steep (usually).