Apologies if this is not the right newsgroup for this..
Our car (Volvo 460) broke down recently, and was towed to the Volvo dealer by the rescue service. Next day, the dealer diagnosed the ECU as being burnt-out and charged us £123. We located a second-hand ECU (£148) and had it sent to the dealer for fitting, which cost us another £70. My wife went to pick up the car last night, and paid by cheque. The garage mentioned to her that the battery warning-light on the dash was on but didn't make it clear to her what that meant. She set off, and not 5 minutes down the road, the car broke down and would not re-start. She was very upset. She phoned the rescue service, who arrived an hour later. The mechanic diagnosed the problem as being the regulator. He tested the charging voltage at the battery as being 38 volts, and suggested this was probably what destroyed the ECU. He added that he was amazed that the garage allowed the car out with this fault. It could have destroyed our new ECU.
Its been suggested that we stop the cheque and re-issue another for half the amount, as the garage has only done half the job. The garage is not sympathetic and tell us this would be illegal.
I'd like your advice or thoughts on the situation.