Hi guys, I'm really scratching my head with this one! I have a VERY intermittant fault on my A4 2.0tdi (170) 2006. Sounds bizarre, but temps typically above 7-8 degrees and my Engine Management Light comes on. It will stay on for say 3 to 4 days then go off, then come on again at a later date, really driving me mad!! VAG-COM 311.2-N is throwing out the following: 1 Fault Found: 01139 - Central Locking Switch: Front Passenger Door Unlocking 006 - Short to Plus When I clear the fault, the light goes out for maybe 24hrs then will re-appear. Why is the Central Locking causing my Eng Mangment Light to come on???? What does the error code mean? What's the fix - if any??? Many thanks guys, this is driving me MAD!!!!!!!