hi, I wonder if anyone can help. I have the following fault code which can be reset but quickly returns usually when engine run from cold, although this may not be the cause. 504dh/20557.
any help would be appreciated. for info it's on a 2.0tdi 184.
image also attached.
thanks
any help would be appreciated. for info it's on a 2.0tdi 184.
image also attached.
thanks
