I struggled finding a new alternator for my S2 Avant but your local Bosch Auto centre can supply a factory refurbished one for £200. Mine looks like a brand new unit and was a perfect fit. They need an exchange unit. Suggest you attend your local breakers who I'm sure will provide you a broken Audi one cheap as chips
Announcement
Collapse
No announcement yet.
Car Broke down! :/ after full revs Any help /advice?
Collapse
X
-
No! Point 4 relates to the fact that the alternator fitted according to the Bosch part number you were given is also internally regulated and therefore not capable of being controlled externally. Its relatively easy to verify if you do a bit of checking. You can then confidently rebut the lies you are being told with facts. The A4 B5 model that alternator fits is also not capable of controlling the voltage of an alternator. Like the correct S2 one, it is also internally regulated! From what I can tell this capability is not possible without Canbus and our vehicles are from the wrong century.
The problem really I think is the pulley which is probably unique. Which is why I have been banging on about getting it back unless it has been fitted to the alternator on the vehicle. As I said previously and others have proved from the threads linked to, the alternator itself is a common fitment on other models of Audi from a similiar vintage. The difference in the part number represents partly the model designation and the differences in the rear cover and pulley. For example the alternator was also used on the S6 C4 with changes to the pulley as it ran a 6 rib belt whereas the S2 used a 4 rib belt.
If the pulley has gone it will never function as intended. Although if you want someone to bodge something back on, then that will also be possible because as long as its attached with a belt and hooked up to the car correctly then it should generate voltage/amps when spun. So basically you need to work out why, in your case, this has not worked.Last edited by twoqu; 17 July 2019, 20:27.
Comment
-
https://www.woodauto.com/bom/35112/BOSCH-0123510033
If you look through the parts that constitute the alternator fitted you will see the Regulator. That means that alternator is internally regulated and not as suggested by any other means.
Comment
-
This is so obvious that alternator on our cars is regulated internally.we talking about car from 90s that has not got any communication network like CAN bus or LIN .if it was controlled by ECU it would have battery monitoring module fitted on negative post on battery with communication line connected to it that can report back the message of battery state of charge ,temp another info and base on this the charge output would be regulated. This is not the option on S2 I'm 100%sure
Comment
-
Huge thank you to everyone for your help!
New plan of action:
Found refurbed bosch alternator off german ebay - bought (£230 euro)
testing old alternator next week at electric specialists next week, then selling or going further on that to get money back.
sent off ECU today to ECUTESTING on the internet..
Then get car running after this and getting a friends work collague (electric specialist) to thoroughy test the car for piece of mind.
Boom then done!! --- back to maintenance -- cambelt and full service and care treatment.
Comment
-
-
Hey guys! a small update, I have recieved the bosch alternator from Germany but 2 things are up with it =
1 of them I think is ok (bolt has sheered off)
The other I am concerned that something could fall inside it. in picture shown (grille section has broken off).
Its a refurbished item from Berlin
Is this ok???
Comment
-
Not ideal is it? If the pulley spins ok I wouldn't be too worried about the broken bit.
Has the bolt actually sheared or just missing?? How many bolts in total hold the alternator together, 3?
You probably paid good money for this??…….I'd be tempted to return it.
Comment
-
Originally posted by John. View PostNot ideal is it? If the pulley spins ok I wouldn't be too worried about the broken bit.
Has the bolt actually sheared or just missing?? How many bolts in total hold the alternator together, 3?
You probably paid good money for this??…….I'd be tempted to return it.
yeh tricky :/
Comment
-
Have a close look at the metal where the missing bit used to be. The refurb process will take a nasty horrible dirty alternator body and likely degrease then vapour blast. The vapour blasting leaves the as new finish and a slight smoothness to the surface. If that smoothness appears across the jagged edges where the missing metal once joined, the bit was missing before it was refurbed and won't be inside. If it is a fresh looking break then it could be inside and would likely rattle.
I don't think I'd run an alternator with a bit rattling around inside it but if it's just missing, it's not really a big deal other than the implications for quality control.
Comment
Comment