2008 Mk4 Diesel TDCi Durotorq engine, auto. Driving along and sluggish response up hill, engine malfunction warning came on and could only drive in 3rd gear - limp mode. Traction control (ESP) light also on. Have not yet pulled codes as reader still in the post. I do have a C41668 showing on the dash in test mode. Will pull and clean EGR tomorrow ( but am told pain to remove - I can see 6 bolts but still won't come loose is there a hidden bolt ? ) Any thoughts
Has otherwise had no issues to date.
I have found an answer so you can close the question and refund the amount back to my card.