I had an issue with my temp needle fluctuating so i took it to shark performance who found a broken wire from the CTS to the ECU,they replaced this and installed Cruse control while i was there.

I asked them to activate the oil temp sensor on my maxidot and a few other bits, they said they couldnt access the Convenience module as it had been changed?

I should have a siemens one and my car had a bosch one fitted?

Also my wipers have a mind of their own and decide to come on whenever they feel like it,Ben at Shark stated this could be due to the CCM as the wipers are controlled via the CanBUS system

Any help as to what to do and whats the reason for VCDS not accessing some of the systems on the car? (i have already tried another laptop and VCDS but with the same issue)

How old is the car?

How old is the car?

...am the proud owner of a 2007 OCTAVIA VRS TDI 170 Saloon

So not a facelift model...

yes, a 2007 pre fl octavia vrs pd170 engine code BMN