Mercedesa.Net

Hello,
I have w211, 270 CDI, automatic, '03. I think i have trouble with the gearbox. There are no error codes when testing.

I want to know, what is the type of gearbox, 722.6?
What's the difference between gearbox/driving w211, w203 with the same engines?

I used to drive w203, 270 cdi. When push the pedal, no metter speed, rpms, the engine start reving and gearbox look's like is slipping.

On my Merc, when i push the pedal, the engine stay with the same rpms like the gearbox. There is no slipping.
For example, when i start from first gear, push the pedal, rpms go to 2000+ rpms, and stay there on some constant rpms, until gearbox start slipping and car is speeding up. BUT, when gear is different from 1st, there isn't this way. On 2st,3th gear, 1500rpms, push little bit the pedal and rpms stay with car throttle. Maybe lock-up is always ON, when not on 1st gear.
When rpms are on 1200,1300 and push the pedal, rpms no goes to 2000,2500rpms and stay there, until the gearbox reach them.
When push harder(not kick-down) it just shift down gear.

I recond. torque converter and change ETC.

Please, can someone explain how lock up is working on this models.

Plutoe

Your problem is that the standard Euro fault testers can not read the MB transmission module----because they can not you can not tell what is wrong with the transmission.

Find someone with factory diagnostic software like DAS Xentry---they can read all the faults they you will know whatdirection to take.

To compare 722.6xx transmissions you need to compare VIN

Mercedesa.Net

I used Star Diagnosis to test, no errors found. My VIN is WDB2110161A010038.

Mercedesa.Net

Can someone check if this ETC module is compatible with my e270 CDI:
A 032 545 14 32 (a0325451432)

Plutoe

Well the bad news is 032 545 14 32 is for a 211---076 and 028

With your VIN the TCU is 034 545 41 32-----that's why your DAS Xentry can't figure it out-----go get a pizza!!

Mercedesa.Net

DAS Xentry shows correctly TCU details.

I checked in EPC with database from '08 that this TCU (A 032 545 14 32) is compatible with my car:
Europe Car FG 004 006 016 026 042 061 065 070 080 082 083

Also checked in newer version, Sept, 2013 and there are was only two models for this TCU - 028, 076

I'm confused... advice, please?

Plutoe

All I can confirm is that I am using EPC ver 01_2014 and I searched two ways with your VIN WDB2110161A010038 and the TCU for that car( from the original part to the current part) is as follows:

030 545 44 32
40 32
41 32

The second where used search without the VIN for part number 032 545 14 32 came up for all areas of the world as used on models 211.028 and 211.076

Obviously you are working with six year old data and that data shows something different--------I would have to guess as to why and I am not going to do that.

My suggestion is to go with your data!! Good luck


PS: The first pic is just the DAS Xentry control unit version data---and ovious that someone has changed it from the original--get the correct module in the car and get on with your life!!

isstay

Torque converter is programmed to slip in 1 and 2 gear at least on W211 models with diesel and V8 engines. It will lock above certain rpm's up to the red line, but in normal driving you can fill it slipping. When is cold my car fills like it has 7G box simply because is slipping on 1 and 2 gear. You can try to drive it with full throttle and see how is acting.

Mercedesa.Net

I think, my gearbox is always locked. Only when start from 0km/h and accellerate on first and second gear it's feels like slipping how you said.
But on the move, on low rpms i think there is no slipping. It's like car with manual gearbox, driving on higher gear with low rpm - when push little bit throttle, no slipping.

isstay

This is exactly what mine does, it slips only when starting from stand still and only in 1 and 2 gear, but after this is locked even if downshift to 2 or 1 gear. If I remember correctly from the info I read about 5G, slippage will happened until ATF warms up to certain temperature - like safety future.

Mercedesa.Net

Thanks for good explanation isstay. I thought that mine gearbox is not ok, lock-up/solenoid for lock-up/tcu e.t.c..
I tested w203, 270cdi where thinks was different from w211. On w203, there is almost all time slippage(i'm not sure in that w203 condition, if lock up wasn't disabled)
Also in w211 manual, there is graph where shows how lock-up is working. In my opinion when push the throttle have to start slipping.
http://bayhas.com/mercedes/w211/cont...torqueconv.htm (direct link to page)
http://bayhas.com/mercedes/w211/contents/ (link to main page)

isstay

W203 should have different TCU programming even with same engine/trany combo, because other factors need to be considered, or maybe it has problem with the gear box.

Mercedesa.Net

I have another question about low rpms. Рegularly, when throttle is hold almost on idle, so i drive with constant speed, gearbox is on higher gear and engine is on low rpm - 1000-1300.
Is this normal? I think it's too low rpms, they have to be higher, 1500 to be minimum, after then to shift down gear? Also when slow down, gear down shifting happened when reach 1000,1100 rpms?!
Isstay, how is your car at this situations?

isstay

My car runs around 38 mph at 1000 rpm on 5th gear, and does same when slowing down like yours.