[EB89]

Originally Posted by Aus335iguy

What happened to you ?

Water pump failed
Then OFHG failed
Which caused the drive belt to fail because it got covered in oil

Because it was right on Xmas and New Years it took ages

[aaron_]

Originally Posted by juld0zer

Mechatronics is the TCU and valve block all in one.
These are very expensive gearboxes, quite literally the retail cost of a brand new one is about $25-30k.

My fingers are crossed for you buddy. I work on these cars and there is only so much that ISTA can do in terms of troubleshooting automatic and double clutch transmissions. Once that is all exhausted it comes down to individual experience with these scenarios.

Have you reached out to other reputable MHD tuners and BMW specialists from USA for example, who nay have encountered this issue before?

This type of fault comes about due to a communication disruption - lost signal, transmitting control unit fails to send out expected signal, etc.

Haven’t reached out to any tuners from the USA.

They’ve narrowed down where the signal is being disrupted but haven’t come to a conclusion yet

[aaron_]

Originally Posted by Aus335iguy

I had a 92 AWD turbo ford TX3 back in the day. Replacement gearbox for those from ford was 15k back in 199x.

At the end of the day a used box is 3k guys dont sweat it.

What we could be doing as a community is looking for one for @aaron_

Potentially, a used mechatronics unit may not be able to be recoded - needs to be verified by a master tech. I’m sure we’d be able to, so not too worried about that

Appreciate the support mate

[aaron_]

Originally Posted by EB89

Do we know that’s 100% the cause?

Not yet

Originally Posted by Aus335iguy

Nope, my money is on wiring.

Fingers crossed but not looking good

Originally Posted by e36mmm

We'll find a solution Aaron. Hold tight mate.

Thanks mate

Originally Posted by Aus335iguy

http://www.ebay.com.au/itm/BMW-1-SER...%257Ciid%253A1

Will keep this one in mind, hopefully can overwrite the coding of the unit

Originally Posted by feuer

wow! The support given on this thread is truly inspiring! Is wonderful.

Great blokes round here!

[aaron_]

Originally Posted by e36mmm

We are a community that should lead by example for others to follow.

Aaron if you need parts and need alternative options for pricing around, contact Michael at Welch Auto Parts for a quote. He's on google directory.

Will keep him in mind. Thanks!!

Originally Posted by Aus335iguy

I'd highly recommend getting a quote from the dealer only(diagnosis costs are unavoidable I think) once they tell you what's wrong you can make better plans

That’s kind of where we’re at now. They’ve been helpful. May have an ace card up their sleeves too but don’t want to jinx it!!

Originally Posted by Aus335iguy

The offer to try your GWS in my car remains open as well. I reckon theres a good chance its got something to do with it.

I don’t have my car so we may have to wear Bmw apparel and break in at night time to do it!!!

Originally Posted by juld0zer

Some questions to ask them:
- Are they able to communicate with the DKG?
- If yes, are they able to successfully execute any/all service functions?
- Any live data parameters missing?

Next time we speak I’ll ask.

Originally Posted by e36mmm

No offense Aaron but this car may be in the wrong hands. It should go to a specialised bmw serviceshop in my opinion if they are taking their sweet ass time. Surely the problem can not be that bad. Any updates? I'd call them everyday until I get updates.

It was at Bavarian engineering in Taren point first, no luck - that’s how it ended up at the dealer

They’re not taking their sweet time. They’ve been extremely helpful thus far. Now they’re liasing with Bmw Germany so communication is slow via email due to the time difference.

I don’t have to call everyday. They call me. Have been very happy with the service, other than not fixing my car yet :-)

Like I said, they have an ace up their sleeves so the extended process now is necessary for a potentially favorable outcome. But we’ll see......

Originally Posted by Aus335iguy

Let’s hope hes driving it and that’s why he hasn’t responded.

Unfortunately not, and it’s looking like it will be some time yet

[aaron_]

Originally Posted by MJ80.

So this 10k part figure is the equivalent of pricing up a new crate engine from the dealership in terms of obviously going to be an insane and inflated price and really a whole new box is around 3k?

The mechatronics unit is $3500 US on ecs tuning.

Originally Posted by EB89

Aaron how’s the car mate?

I got mine back today after 6 weeks of issues, feels great to drive again.

Yours is a lot better than mine then ;-) no change with mine. Cruising in my 2017 125i :-)

I’m at about 6 weeks now, maybe it’s been 5. May as well be 5 months. Feels like forever.

Originally Posted by EB89

Water pump failed
Then OFHG failed
Which caused the drive belt to fail because it got covered in oil

Because it was right on Xmas and New Years it took ages

My water pump has already failed, and my ofhg, which resulted in needing a new serp belt and top radiator hose. Love these cars lol

Christmas/New Years is a killer for this sort of stuff

[Aus335iguy]

Dude, something doesn't tally here . The mechatronics unit is one and the same as the TCU. It's one part number and you've already had that changed and that didn't fix the issue.

The GWS is the shift leaver and box.
Between TCU and GWS They're the two pieces of smarts that make up a DCT box besides the engine DME

I don't think coding is hard, I do it for kicks on my car???

[aaron_]

Originally Posted by Aus335iguy

Dude, something doesn't tally here . The mechatronics unit is one and the same as the TCU. It's one part number and you've already had that changed and that didn't fix the issue.

The GWS is the shift leaver and box.
Between TCU and GWS They're the two pieces of smarts that make up a DCT box besides the engine DME

I don't think coding is hard, I do it for kicks on my car???

I had the module under the shifter changed, not the unit located inside the gearbox.

Part number changed was 61319213647

Part number of mechatronics in question is 28607842860

That’s all the info I got!

[Aus335iguy]

Originally Posted by aaron_

I had the module under the shifter changed, not the unit located inside the gearbox.

Part number changed was 61319213647

Part number of mechatronics in question is 28607842860

That’s all the info I got!

The module under the shifter is the GWS the part that i offered to try out in my car....but it shouldn't cost 2500 bucks. Far out !!!
http://www.ebay.com.au/itm/BMW-Genui...-/142640591498

ECS has them(TCUs) new for 3500 USD
https://www.ecstuning.com/b-genuine-...t/28607842860/

This was a used TCU for less than 1 k
https://www.laglobalparts.com/Catalo...-OEM&makeID=10

[Aus335iguy]

https://rover.ebay.com/rover/0/0/0?m...2F222697604555

Take the TCU and sell he rest ?

[aaron_]

Originally Posted by Aus335iguy

The module under the shifter is the GWS the part that i offered to try out in my car....but it shouldn't cost 2500 bucks. Far out !!!
http://www.ebay.com.au/itm/BMW-Genui...-/142640591498

ECS has them(TCUs) new for 3500 USD
https://www.ecstuning.com/b-genuine-...t/28607842860/

This was a used TCU for less than 1 k
https://www.laglobalparts.com/Catalo...-OEM&makeID=10

The price I quoted was $2700 for part + labour on the gws. I paid $1400 for the part. I know it was overpriced. But that was the week before Christmas, and I though for the sake of $500 (could have gotten it $900 landed) I’d rather have my car back one week earlier. Turns out it wasn’t the part I needed. Live and learn........


If you look at one of my responses above, I did mention the ecs price, as for the used item you posted WOW!!!!!! Good looking out! Will definitely keep that one in mind. I’m very happy if I can get it around that price.

[aaron_]

Originally Posted by Aus335iguy

https://rover.ebay.com/rover/0/0/0?m...2F222697604555

Take the TCU and sell he rest ?

Is that the same tcu if it’s from an M3 gearbox?

Edit: it’s the same.......

[e36mmm]

Only way the delayed process at bmw may work in your favour is if you have purchased the car from one of their own dealers and not from a non-bmw dealer.

Finger crossed for ya mate.

[aaron_]

Originally Posted by e36mmm

Only way the delayed process at bmw may work in your favour is if you have purchased the car from one of their own dealers and not from a non-bmw dealer.

Finger crossed for ya mate.

Yeah I know. Odds are very slim, especially with being mhd tuned. Can’t hurt to try!

[juld0zer]

Right.. a bit of confusion in this thread with the actual parts replaced. It can be a game of Chinese whispers sometimes. Thanks for clarifying though.

Did you hear back from the dealer re the questions i asked?

The only reason I ask those is because if they can't communicate with the DKG (control unit shows up brown/dead in the control unit tree) then I'd be more inclined to follow their suggestion of replacing the mechatronics.

If they have full communication (read, command, live data output) and all appears normal except the persistent faults logged then the mechatronics is not dead.

If the communication is patchy or erratic like it keeps dropping out or various random functions are not working then there may be an internal fault.

Are they open on Saturdays? I dont have any contacts at Sylvania so i cant reach out for you im sorry

[Aus335iguy]

Originally Posted by juld0zer

Right.. a bit of confusion in this thread with the actual parts replaced. It can be a game of Chinese whispers sometimes. Thanks for clarifying though.

Did you hear back from the dealer re the questions i asked?

The only reason I ask those is because if they can't communicate with the DKG (control unit shows up brown/dead in the control unit tree) then I'd be more inclined to follow their suggestion of replacing the mechatronics.

If they have full communication (read, command, live data output) and all appears normal except the persistent faults logged then the mechatronics is not dead.

If the communication is patchy or erratic like it keeps dropping out or various random functions are not working then there may be an internal fault.

Are they open on Saturdays? I dont have any contacts at Sylvania so i cant reach out for you im sorry

The fact that the thing worked and the fault came back....

[DR-JEKL]

This tranny is in Sydney for $3k ono:

https://www.gumtree.com.au/s-ad/ches...ap-/1170728442

[aaron_]

Originally Posted by juld0zer

Right.. a bit of confusion in this thread with the actual parts replaced. It can be a game of Chinese whispers sometimes. Thanks for clarifying though.

Did you hear back from the dealer re the questions i asked?

The only reason I ask those is because if they can't communicate with the DKG (control unit shows up brown/dead in the control unit tree) then I'd be more inclined to follow their suggestion of replacing the mechatronics.

If they have full communication (read, command, live data output) and all appears normal except the persistent faults logged then the mechatronics is not dead.

If the communication is patchy or erratic like it keeps dropping out or various random functions are not working then there may be an internal fault.

Are they open on Saturdays? I dont have any contacts at Sylvania so i cant reach out for you im sorry

Haven’t asked yet. Don’t want to hassle him too much. I’ll call him tomorrow lunch time to ask if he hasn’t called me yet. I’d already spoken to him yesterday when you suggested it.......but will definitley respond here when I get an answer

Originally Posted by DR-JEKL

This tranny is in Sydney for $3k ono:

https://www.gumtree.com.au/s-ad/ches...ap-/1170728442

Looks good - what do you think the transmission would sell for without the mechatronics unit?

[Aus335iguy]

Originally Posted by aaron_

Haven’t asked yet. Don’t want to hassle him too much. I’ll call him tomorrow lunch time to ask if he hasn’t called me yet. I’d already spoken to him yesterday when you suggested it.......but will definitley respond here when I get an answer

Looks good - what do you think the transmission would sell for without the mechatronics unit?

Dunno but it's worth trying to recoup some money.

[DR-JEKL]

Originally Posted by aaron_

Haven’t asked yet. Don’t want to hassle him too much. I’ll call him tomorrow lunch time to ask if he hasn’t called me yet. I’d already spoken to him yesterday when you suggested it.......but will definitley respond here when I get an answer




Looks good - what do you think the transmission would sell for without the mechatronics unit?

By memory it said $3000 negotiable, could get it for $2500 i reckon. Could potentially sell it for ~ $2.5K if someone blows their box up in the future

[Aus335iguy]

Originally Posted by DR-JEKL

By memory it said $3000 negotiable, could get it for $2500 i reckon. Could potentially sell it for ~ $2.5K if someone blows their box up in the future

The issue is that they are pretty hard to brake...the mech units are fairly robust as well....

[Aus335iguy]

I had a thought ... the error codes are for coms between DME and DKG. It may not be your box it could be your DME....They are common as shit

Also - do you run a jb4?