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Engine start system fault. please contact workshop!

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January 24, 20251 yr

my Audi a6 C7 will not start at all I have had the battery changed and also the clutch switch/clutch master cylinder and still it won't start

my fault codes are

U111300 ABS/TCS/ESP CAN SIGNAL SIGNAL FAULTY

U111300 FUNCTION RESTRICTION DUE TO FAULT VALUE RECEIVED

can anyone please help me

THANK YOU

January 25, 20251 yr

Does your diagnostic machine allow you to see all modules fitted to the car, looks like a Bosch so would think so but want to check.

are they all present

does it allow you to run a canbus network check

January 25, 20251 yr

If your seeing all the usual modules the next thing I would do is as the fault codes look like there in your ABS module I would run live data on all 4 wheel speed sensors. See if all 4 are giving good feedback regarding speed reading.

3 weeks later...

February 13, 20251 yr

Author

On 1/25/2025 at 3:44 PM, Sid2020 said:

Does your diagnostic machine allow you to see all modules fitted to the car, looks like a Bosch so would think so but want to check.

are they all present

does it allow you to run a canbus network check

hi sid I booked in with Audi main dealer on the report Audi also said it was the clutch switch. Audi also said maybe the wiring wasn't done properly also fault code not deleted

so I have it booked in with Audi to work on it finger crossed that's the last of my problems

February 13, 20251 yr

Keep us posted on how you get on

February 13, 20251 yr

Be interesting to know what they come back with

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Welcome to the Audi Owners' Club - An Independent community!

Engine start system fault. please contact workshop!

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Help with some issues

Are S5's notorious for not being serviced?

Wing mirrors don't fold out when unlocking the car.

Park My A3 without having brakes on

A3 uncommanded engine shutdown

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