I have a 2001 B6 A4 with a problem with the remote locking.

The problem is the key keeps going out of sync, then if you unlock the car with the key it re syncronises and works fine for a little while (about 20 mins) the stops working again.

I have tryed matching it to the car with vag com and and again it stops working after a while. I cleared all old adaptions from the CCM (10 adaption, channel 00 save) before re matching.

Im getting fault code
00955 - Key 1
09-10 - Adaptation Limit Surpassed - Intermittent
als 1s time I checked and leared them the was 2 more codes that have not reappeared (they had something to do with communications to both front door modules?)

I did have a look at the module coding but have not changed it yet. The current coding is 00400 but vag com sugests 00401. Could this be my problem?

It also has a problem with the aerial that might be something to do with the remote locking but I dont think it does?
00858 - Connection; Radio ZF Output to Antenna Amplifier
36-00 - Open Circuit
I know what is wrong with that it need a new amplifyer because if I put the right amount of pressure on certian parts of it the reception is perfect. New part £104 .

Many thanks Smokey0123