Hi all. My 2011 Citroen C4 Grand Picasso had an injector fault on the bank holiday which caused it to limp badly. RAC recovered me to their approved garage for repair. Replacement of number 3 injector was supposed to have taken place and they called me in to collect 3 hours away. Got there and the clamp on the number 2 injector was loose causing knocking and smoke. It hadn’t been tested. They ordered the part and called me back once fitted. Having just driven it home it appears to be leaking diesel (under drips and back side of car caked in diesel)
Garage says it is unconnected fault and to bring it back. Am I right to be suspicious of their work or is there a rational explanation. It is a high miler 160k.