04 W211 gearbox

[rpe2]

Evening All,

As I may have bored you already with the tale of my new car (2004 E320 CDI Estate), I was wondering if the following is a characteristic of the 211 (having traded up from a W210.

The gearbox seems to change through the gears a little too quickly for my liking leaving the enging feeling like it is (slightly) labouring at times. Has anyone come across this beore, or is is a characteristic of the car?

Best Regards

 

[television]

What gearbox do you have on the car

 

[rpe2]

What gearbox do you have on the car

722.6 autobox.

 

[television]

OK thanks, this box is well proven. Its doubtful that the fluid has ever been replaced, and 40k is the recommended time now, once its changed along with the filter everyone reports back saying how much smoother the changes are.

 

[rpe2]

Thanks, I thought this may be the case. It's going for a check over at the weekend, so will have a closer look.

Thanks again.

 

[rpe2]

A bit better now for an oil change. Good old MB dealer that had serviced the car 3k miles ago had very much overfilled the box, which didn't help.

 

[rpe2]

Righty Ho,
Am still having this issue with my W211 E320 estate (2004).


Pulling away from standstill is fine, into 3rd (in S mode)it hesitates slightly, and then again into 4th. 5th is fine.

When wanting to pick up speed in a hurry rather then change down, it seems to get bogged down, leading you to give it a further blip on the throttle to pursuade it.

Had the adaptions reset when the ATF was changed.

I have read that the MAF may cause gearbox faults, any thoughts? If so, is there any way to test the MAF as no faults are showing on STAR.

ANy thoughts?

Thanks again

 

[television]

This is a difficult one.

The output from the engine is married closely to the torque converter, if when accelerating, and the engine power is down (MAF?) then the gearbox is not quite sure what to do, this causes things like holding onto a gear for too long, and delayed changes etc.

Some cars will drive fine with the MAF disconnected and some will not

 

[rpe2]

Having spotted a rare event today (sunshine) I went and took t'lid off engine and unplugged the MAF and went for a spin.

A different car, so one now on order (MAF not car).

 

[television]

Thanks for confirming it,, a bosch insert is the cheapest

 

[rpe2]

Sorry to dig up an old thread of mine, but the gearbox/ engine issue still persists even after a new MAF was fitted. I can only assume that my initial joy was a result of the placebo effect.

I'm having the fault codes read again tomorrow, but as I recall 1 code I remember seeing was one for a boost pressure sensor.

The symptoms in summary are that the car lacks oomph for example:

- when slowing from high speed for a roundabout, and then going on to the throttle, the car grumbles as if you had (in a manual car) left it in 5th gear and tried to accelerate. A healthy dose of throttle makes the car change down to get over this, but is hardly ideal.

- As you approach a hill (there are many in Cornwall as I have discovered this week), an appreciable increase in throttle pedal is required.

Overall it feels as if there is not enough boost there (or at least in the required amount). I can hear the turbo spinning up, and can hear no hissing/ leaks. I can only conclude that the wastegate is not opening enough/ in a timely manner.

I'll post back tomorrow with any fault codes, but if anyone had any thoughts in the meantime, I'll probably buy them a beer as this is spoiling my enjoyment of an otherwise very nice car.

Thanks in advance

p.s. hope those that went had a good time @ the West Country GTG

 

[Cole@MBS]

Sorry to dig up an old thread of mine, but the gearbox/ engine issue still persists even after a new MAF was fitted. I can only assume that my initial joy was a result of the placebo effect.

I'm having the fault codes read again tomorrow, but as I recall 1 code I remember seeing was one for a boost pressure sensor.

The symptoms in summary are that the car lacks oomph for example:

- when slowing from high speed for a roundabout, and then going on to the throttle, the car grumbles as if you had (in a manual car) left it in 5th gear and tried to accelerate. A healthy dose of throttle makes the car change down to get over this, but is hardly ideal.

- As you approach a hill (there are many in Cornwall as I have discovered this week), an appreciable increase in throttle pedal is required.

Overall it feels as if there is not enough boost there (or at least in the required amount). I can hear the turbo spinning up, and can hear no hissing/ leaks. I can only conclude that the wastegate is not opening enough/ in a timely manner.

I'll post back tomorrow with any fault codes, but if anyone had any thoughts in the meantime, I'll probably buy them a beer as this is spoiling my enjoyment of an otherwise very nice car.

Thanks in advance

p.s. hope those that went had a good time @ the West Country GTG

Boost pressure sensor fault normally means turbo waste gate sticking, new turbo needed, lets hope its not that!!

 

[Cole@MBS]

And Yes, it was a great meeting!!!!!!

 

[rpe2]

Excellent, glad you enjoyed your meet....

...and urgh. Is there a way to test the operation of this?

Thanks (as always)

Richard

 

[Cole@MBS]

No not really, when they first come out, people was fitting sensors, clearing the fault, 2 miles down the road and the fault was back, new turbo fitted, fault gone!!!

 

[rpe2]

I don't suppose it can be greased with high temp grease (he said thinking wishfully), failing that, can they be rebuilt by firms?

 

[Cole@MBS]

Fault in the design, new one Sir!

 

[rpe2]

Is the WG on these Eur 4 engines electronically controlled?

I can't see a vacuum line as there was on my old 2000 E320.

Dare I ask cost? or would it be best to see Mr Scrapman/ Nick @ Euromerc?

 

[Cole@MBS]

Its controlled by the ecu!

Yes,try Nick!!

 

[rpe2]

Will do, looks like I may have a trip to Soton planned to meet you face to face.

Thanks for all of the info, much appreciated.