You are entitled to return the vehicle if it is not of satisfactory quality, within the first 30 days.
Thereafter, your remedy as compensation/damages.
However if they try to repair the vehicle within the first 30 days, the clock stops and if that repair doesn’t work, you then have a further six months to reject the vehicle.
Don’t get excited. Car dealers are not well-known for putting their hand in their pocket and refunding something which is not of satisfactory quality and which has not been returned.
Within the first 6 months it is assumed that the problem existed at the time of purchase but after six months the onus is on the buyer to prove that the full to existed the time of purchase.
The thing is of course that you cannot beat the dealer with a stick until they pay up and your only remedy is to take them to the Small Claims Court for whatever it costs to fix. That’s probably going to be more than the vehicle is worth.
You need to put it in writing to the dealer that unless he agrees to pay all these costs (tell him how much) you will take him to the Small Claims Court.
www.moneyclaim.gov.uk is quick and easy. You can prepare the proceedings now, and save them online ready to issue them whenever a deadline for payment (you have to give them a deadline in writing and it has to be reasonable period to pay up) expires.
Can I clarify anything else for you?
Please note that my answer is based strictly on the information that you have given me. If you have not given me all the information, then my answer may be incomplete or wrong.
I am happy to answer any specific points arising from this.
If you still need any points clarifying, I will be happy to reply because the thread does not close.