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Looking for advice. I have a 2014 S5 which hasn’t yet done 36000 miles. I got an error Gearbox Malfunction No Reverse you can continue to drive. I called The AA and they ran diagnostics and got unknown error and advised to take straight to Audi. I did and they have had the car now since 31 December to advise on Monday that I needed a new Gearbox and that Audi would contribute 50% towards the cost even though the car is out of warranty.

I asked for more information and they advise: -
The car was presented to us with gearbox faults and drivability issues. The electronic diagnosis of the car showed fault codes P2841 ( Gear actuator 4 implausible) and P173D (Distance sensor 4 implausible), Audi technical suggest that as both fault codes are present, this is an internal failure of the gearbox and their recommendations is to replace the transmission.

I’m wondering what those codes mean in layman's terms. How have the faults developed? What is the cause of such a failure? Does age of car versus mileage have significance? Should a car with such low mileage be developing this issue? Has anyone else experienced this and if so how was it dealt with? Is Audi’s offer to pay 50% an admission that the car was manufactured with a faulty part? Has anyone had a better result from Audi and how did there scenario play out? Should I get legal advice?
 

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Blimey, that sounds serious, how much are we talking about in pound notes here???? (Or dollars). You need to establish the following I think: (is the car manual or auto and if auto which type).

1. Car history and service history. Have you owned her from new?? Have you got a full Audi service history? Is this the first time the fault has occured??
2. I would imagine that this MUST be a known defect if they have already offered half??

If so then you need to get some expert help cos you may be able to obtain the other 50%, as the car is very low miles and also very young to need a new gearbox, methinks.

Good luck, Simon
 

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Get the AA to give you their professional opinion on the state of the car and if they consider that you could have caused the problem (by bad driving or whatever) or if instead this MUST be a manufacturing fault. Worth paying them or anyone else to get such stuff in writing.
 

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I had the same, 2013 S5 (same error codes). I drove the car for 3 months resetting the logs every now and then. Then had it repaired at a specialist (not Audi), for € 4.500,- They opened the gearbox to change a sensor and the wiring and replaced the clutches. Audi replaces the whole gearbox I believe.
 
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