Can you replace Magnetti Marelli ETMs with a Bosch ETM?

[KATANA MAN]

Hello guys n gals!

I am sure there are a load of people desperately searching for a fix for their cars without lining the pockets of VOLVO UK.

I know I am!

They are quite happy to take our money without there being a permenant fix, because as you know they can only replace a part with another one which Will fail again in the future and try and fool the car into thinking there is not a problem when there is one!

Im one of these people who will only take my car to the garage after all other avenues have been exhausted.
I am a time served mechanic ( not been in the trade for a long time though) and do all my own repairs and servicing.

So why cant the later Bosch ETM be fitted to the earlier cars with and adapted wiring harness and system up grade? has anyone tried this?

What are the physical differences between the Bosch and Magnetti Marelli ETMs?

Is it wiring ?

Is it a software incompatibility?

Is it the mounting holes and maniforld that are different?

Someone must know!

Has anyone done it?

CAN IT BE DONE?

It has to be possible to convert to the later bosch ETM which wont fail!

Sorry to witter on and on! Just dont like wasting my money on sh*te!

thanks again for your help!

Katana man

[kevin derby uk]

sorry no it wont replace the old unit

[Clan]

the bosch unit is just a motor and gears and potentiometer , the car ECU does the processing . , the Magneti Marelli has the microprocessor inside. Two completely different units .
I've never seen a replacement ( yellow label) unit fail ... anyone??

[bus]

Originally Posted by Clan

the bosch unit is just a motor and gears and potentiometer , the car ECU does the processing . , the Magneti Marelli has the microprocessor inside. Two completely different units .
I've never seen a replacement ( yellow label) unit fail ... anyone??

mine had a yellow sticker, it failed, I bought it in limp mode, sent it back to bbm they replaced the damaged part with a non contactor mod, only charged me £100. fitted and got the softwear uploaded but still was in limp mode, erased the codes 5 times now seems ok.
MOT the weekend then on the road for a long run, will post if ok

[FaKaWi]

Originally Posted by Clan

the bosch unit is just a motor and gears and potentiometer , the car ECU does the processing . , the Magneti Marelli has the microprocessor inside. Two completely different units .
I've never seen a replacement ( yellow label) unit fail ... anyone??

Yes, I had my yellow label item replaced approx 4 weeks ago by Volvo, it was definitely the second time it has been changed as Volvo had a record of the previous replacement as they'd made a contribution to the cost.

For anyone who needs a new ETM I actually found a way to get the whole unit replaced with all the software etc from a maindealer very cheaply. The AA offer a breakdown repair cover policy to their members, whereby they'll cover the first £500 (less a £25 excess) of repairs if you call out a patrol to your car and they are unable to repair it at the roadside for an annual premium.

My ETM had been on the way out for a while, when it suddenly got much worse on a trip to work. Pulled over, called the AA, out they came. Car went to Volvo (they didn't tow it, I drove it their after the patrol had inspected the car). I spoke to the AA and they agreed that the ETM was covered by the repair policy.

Cost of repair was £478, of which I had to pay the first £25. My annual premium for the cover is under £70, so total bill to me was under £100.

[bus]

thanks, signing up tomorrow, will cover me on my Cornwall holiday

[bus]

Originally Posted by KATANA MAN

Hello guys n gals!

I am sure there are a load of people desperately searching for a fix for their cars without lining the pockets of VOLVO UK.

I know I am!

They are quite happy to take our money without there being a permenant fix, because as you know they can only replace a part with another one which Will fail again in the future and try and fool the car into thinking there is not a problem when there is one!

Im one of these people who will only take my car to the garage after all other avenues have been exhausted.
I am a time served mechanic ( not been in the trade for a long time though) and do all my own repairs and servicing.

So why cant the later Bosch ETM be fitted to the earlier cars with and adapted wiring harness and system up grade? has anyone tried this?

What are the physical differences between the Bosch and Magnetti Marelli ETMs?

Is it wiring ?

Is it a software incompatibility?

Is it the mounting holes and maniforld that are different?

Someone must know!

Has anyone done it?

CAN IT BE DONE?

It has to be possible to convert to the later bosch ETM which wont fail!

Sorry to witter on and on! Just dont like wasting my money on sh*te!

thanks again for your help!

Katana man

If I replace the engine wiring loom and ECU with BOSCH surely this will work?

[ade555]

Well I'm sure AA will only cover you if your car has been service on regular basis in garage or main dealer so the book gets stamped, if you service your car your self is no point paying the money as AA will not pay out.

[FaKaWi]

Originally Posted by ade555

Well I'm sure AA will only cover you if your car has been service on regular basis in garage or main dealer so the book gets stamped, if you service your car your self is no point paying the money as AA will not pay out.

My car hasn't been to a Volvo garage (except for the ETM) for over 30,000 miles, there are no service stamps for the last 5 years because it is serviced by Tim Williams. On top of that, it's heavily modified. The ETM is not a service part, therefore they automatically covered it without even asking about service documents.

I love how people who haven't actually used a service assume they know all about it.

[BigBas]

I've just bought an S80 D5, and I really dont know much about this at all. What are the symptoms and tell tale signs of it breaking? And how do I know if the part has been replaced

Bas