Vauxhall / Fiat 1.3 CDTI ECU repair? in General Dealer Chat Posted April 2 · Edited April 2 by SC Derby 1 hour ago, MarkTVS said: Who’s good and cheap for doing the repair on the ecu for water ingress? I had normally used ecutesting.co.uk but they just quoted me over £800 I did decline this and just paid their £65 test fee. They went nuts on price after they had their new building finished and fully kitted out I’m only 20 mins from them and had 2-3 1.3 cdti Ecus repaired probably 4 years ago and got change from £300 every time!!!