Help Please, ECU needed for 560SEC

[graeme36s]

It appears the ECU has died on my 560SEC. Could anyone recommend a reliable source for 2nd hand Merc parts. MB part number 0065455432 Bosch part number 0227400701. New price £912.55 plus vat .
Any help would be very much appreciated, cheers Graeme

[Mikey_W]

Maybe you could try a company that repairs ECU's? I could supply one direct from Mercedes, send me a email if your interested

[BrabusK8]

hi

what year is it?

[graeme36s]

Thanks guys, it is 1988, cheers Graeme

[5 wh]

Try Dronsfields in Oldham.

http://www.dronsfields.com/

BBA-Reman repair certain ecu's.Maybe contact them too.

http://www.bba-reman.com/uk/index.aspx

[Pentoman]

I would go for MercMan over dronsfields, on experience they are less likely to shaft you as much.
The car should run fine without an ECU believe it or not (response and cold running will both suffer) so you never know you might be able to wait til one comes along...

Google the part no. because a place sells reman ones and can be found by doing this.

Presume OVP is fine? (it powers the ECU)

[graeme36s]

Pentoman said:

I would go for MercMan over dronsfields, on experience they are less likely to shaft you as much.
The car should run fine without an ECU believe it or not (response and cold running will both suffer) so you never know you might be able to wait til one comes along...

Google the part no. because a place sells reman ones and can be found by doing this.

Presume OVP is fine? (it powers the ECU)

Thanks Pentoman. My problem is the car will not start. Mechanic has changed the crank sensor so presumes the ECU is kn**red. Excuse my ignorance but what is the OVP? and just maybe he has diagnosed the fault incorrectly, many thanks, Graeme

[Pentoman]

graeme36s said:

Pentoman said:

I would go for MercMan over dronsfields, on experience they are less likely to shaft you as much.
The car should run fine without an ECU believe it or not (response and cold running will both suffer) so you never know you might be able to wait til one comes along...

Google the part no. because a place sells reman ones and can be found by doing this.

Presume OVP is fine? (it powers the ECU)

Thanks Pentoman. My problem is the car will not start. Mechanic has changed the crank sensor so presumes the ECU is kn**red. Excuse my ignorance but what is the OVP? and just maybe he has diagnosed the fault incorrectly, many thanks, Graeme

OK I just wrote a large post which turned out to be wrong because I googled the p/n and it turns out you're talking about the ignition ECU not the injection one. So scrap everything I said. The car will not run at all without an ignition ECU, sorry about the confusion. And I assume your mechanic is smart enough to have checked for a spark and knows its a spark problem!!!

I had a problem with my 190 where, after a gearbox change, the engine wouldn't start presumably because of the crank signal. I checked the signal at starting with an oscilloscope and it was present and correctish. After removal and reinsertion of the sensor it was ok... so that was weird.
The price quoted was the same for the ignition computer for this 190 as well (2.5-16). I had one of these computers fail on my 2.0 190 but it was much cheaper. It failed slowly over a few weeks, sometimes not starting at first then starting okay with a bit of a misfire.

For that cost you could put the money towards a conversion to EFi and get some nice extra economy and power to go with it all!

Or try one of this google search http://www.google.co.uk/search?complete=1&hl=e...

I bet my finger that if you get a ECU from a same year 500 it will work; it's a bit of a bodge however and some of the timing would probably be off :/

good luck

[BrabusK8]

hi

If you can get the part number number
Try MSL Centre
0121 772 44 55 ask for ACID

[graeme36s]

Many thanks guys. BBA Reman cannot repair it so I'll telephone MSL, Dronsfields and Mercman tomorrow. Let you know how I get on, cheers Graeme

[5 wh]

graeme36s said:

Many thanks guys. BBA Reman cannot repair it so I'll telephone MSL, Dronsfields and Mercman tomorrow. Let you know how I get on, cheers Graeme

BBA Reman need to change their wording in their latest brochure they sent me yesterday which boasts-"ALL Mercedes ECU's repaired"

[Pentoman]

My route would still be to test by using one off a 500 or 420 (if you can borrow one or get one cheapy/scrappy), to be certain it's the ECU before shelling out the wonga for a 560 one.

[5 wh]

Maybe try here too(I have never dealt with them-I just searched ebay)

http://cgi.ebay.co.uk/Mercedes-560sec-10fuse-sec-5...

[graeme36s]

5 wh said:

graeme36s said:

Many thanks guys. BBA Reman cannot repair it so I'll telephone MSL, Dronsfields and Mercman tomorrow. Let you know how I get on, cheers Graeme

BBA Reman need to change their wording in their latest brochure they sent me yesterday which boasts-"ALL Mercedes ECU's repaired"

The mechanic who is a good mate I saw yesterday for our usual Saturday morning lunchtime get together. I mentioned that I had spoken to BBA Reman and would ring on Monday when their workshop is open. He said don't bother, I sent the ECU their for them to repair. They confirmed that the ECU is the problem but could not repair it

[graeme36s]

Finally bought a used unit today from "cars with stars" based in musswell hill. Identical part number and the chap ran the car up before removing the ecu. £350 not cheap but a third of the price of a new one .