What is the name of your state (only U.S. law)? California
While my car was being repaired my mechanic gave me a loaner car to use..he didnt finish my car in time and i was going out of town and needed to leave that night. He told me i would be responsible for the car and i needed insurance to cover it. So i called my company and they added car. On the way back a sensor came on in the car and he wanted my husband to pay 230 to fix it but he said he would take half and my husband paid him half..the car belonged to another customer..can he charge us for this? Is there anything we can do
Listen! Please forget about who owned the bloody loaner! If you aren't confused by the unschooled guesswork from "BL", you ought to be.
(First, let's assume for discussion that the mechanic personally has some recognizable legal claim, which he does not as I will explain below.*)
Then the critical legal issue here is that the mechanic represented, and your husband had no reason to question, that he was authorized to grant his customers the temporary use of the vehicle. A usage that falls under the category of bailment.
In this instance the mechanic lender is the bailor and your husband is the bailee. And the laws of bailment are such that your husband would only be responsible for damage occurring to the vehicle due to his failure to exercise ordinary care. In other words, the mechanic would have the burden of proving that whatever mechanical dysfunction is found to be the cause of the activation of the "engine sensor light" was due to his negligent use of the vehicle.
And unless there is convincing evidence that the dysfunction was due to your husband's failure to maintain engine oil and coolant at proper levels, your husband bears no liability.
[*]
HOWEVER, please be aware of the fact that under theses circumstances the mechanic, not being the registered owner of the vehicle, would have no standing in court on any grounds!
Why? Because of a universal principle of American Jurisprudence that all judicable claims MUST be brought in the name of the real party in interest. Otherwise, your husband could be put to the expense of defending separate claims brought on by the mechanic as well as by the owner of the vehicle. And or the owner's insurance carrier under the theory of subrogation should an insurable loss have occurred.