Wrong EZL unit?

[chrisd87]

Apologies for bombarding the board with so many questions, but...

It looks like my 190E 2.6 has the wrong EZL unit fitted. When topping up the oil I noticed that it has "4 Zyl" written on it, which made me look a little further. It's a Siemens unit, part no. 010 545 52 32, which a quick google suggests is from a 190E 1.8.

Is running with this unit going to cause any damage to my engine (or the EZL)? It seems to be running fine, albeit not with quite as much power as I expected from a 2.6 litre engine, and occasionally a very slight 'stumble' at idle. Does anyone know the part number for the correct EZL for my car (it's a '92 UK model)?

http://www.w124-zone.com/downloads/MB CD/W124/w124CD1/Program/Engine/103/15-0515.pdf

The above link is a list is for 6cyl W124 EZLs, and gives quite a few part numbers in the list for (amongst others) the M103.942 non-USA 'KAT' engine, which is what I think I have. Would these also be suitable for a 190E? Would the following unit be suitable?

MERCEDES-BENZ IGNITION CONTROL MODULE 006 545 75 32 0065457532 | eBay

Many thanks,
Chris.

 

[kth286]

If you post you full VIN, someone can give you the definitive part number for your car.

 

[grober]

These are possibly the correct nos for your 6 cylinder car .

Producer & Producer partnumber:
MERCEDES BENZ / BOSCH: A0035459632 / 0227400532

Mercedes analogy numbers:
0035459632, A0035459632, A0085456132, 0085456132, 0055458432, A0055458432, 0065457332, A0065457332, A0065457532, 0065457532, 0055458632, A0055458632, 0035459532, A0035459532, A0085456332, 0085456332


German SPOB: CONTROL UNIT - IGNITION CONTROL, M103, 260E, 260SE, 2.6E MERCEDES BENZ / BOSCH A0035459632 / 0227400532 0035459532 0035459632 0055458432 0055458632 0065457332 0065457532 0085456132 0085456332 A0035459532 A0035459632 A0055458432 A00554586
AS OPPOSED TO YOUR ONE
German SPOB: IGNITION CONTROL UNIT - EZL, W201 1.8E MERCEDES BENZ / BOSCH A0105455332 / 0227400404 0105455232 0105455332 A0105455232 A0105455332

Since the ignition advance curve is stored on these units I imagine there may be slight differences between the 4 and 6 CYLINDER engines.

 

[bolide]

...

 

[grober]

K6JRF Auto Page Good explanation of how an EZL functions here.