Is this the end?

piglet14

piglet14

Finally got my midlife crisis car
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Aug 11, 2017
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Location
South East UK
3.0TDi tip S-line Quat Avant ASB 87K
Always ran perfectly until we got to the alps in September then started heat related shut downs. Not overheating but only on extended alpine climbs and last straw was on a flat Autopista to Turin, 75mph & 27.5°c, sudden shut downs with little warning.
We ditched the car in Turin and it arrived back home yesterday. Now it's cool the car is perfect!
No EML except when in fault.
Codes from OBD11: P1601, P1881, 01314, lots of reference to intermittent ECU communication.
I'll get it booked in somewhere but thinking this could be beyond economic. Sad& hoping not.
Thanks for reading this far.
Any thoughts out there?
 
electrical gremlins could be a relay or a fuse... or a corroded ecu connector causing it... I don't think it'll be to hard to sortout but if the car is now behaving it'll ake it very ard for a technician to pinpoint the exact problem and sort it out for good... this could mke it expensive.. i'd say just run google the codes and see if the possible solutions are something you can DIY, if not get another car and trade this one in. It runs fine now so that is what i would consider.
 
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At first glance it's all pointing to a possible ECU eprom/chip failure - it might not be beyond economic repair then, if it's possible/not too difficult to replace with a secondhand one; or repair? It's worth taking the lid off the ECU first to check for water ingress, that may have caused any damage.
 
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My ECU has 2 P Nos.
8E0 907 401 AL on the Audi Bosch label
8E0 910 401 N on an unbranded sticker.
Is one the hardware & the other the software code?
 
I'm almost sure they are both hardware part numbers - the software numbers can be found through a scan and are very different; I have no idea why there would be two different part numbers. Have you opened the ECU up yet, to inspect for damage?
 
A vcds scan will tell you the actual part number... it's the first thing on module - 1.engine, when it made a connection. The part number might have been changed because the ecu has had a new mainboard put in (could've been because it had water seeping into it before)
 
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I may have answered my own question by looking in the OBD11 log:
Software number: 8E0910401N
Software version: 0050
Hardware number: 8E0907401AL
Coding: 0011171
 
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