Thanks for your question.
The law states that up until 6 months after the sale of the vehicle, it's up to the dealer to prove that the fault wasn't there when he sold it to the purchaser. This is called the "Reversed Burden of Proof". They will know this and you can cite it to them if they claim "it's your fault"
Go back to them, state that the car is not of a satisfactory quality under s14(2) Sale of Goods Act 1979 and that you require that they repaired. This is therefore a breach of contract. They must do the repair within a reasonable time.
You are entitled to ask for a replacement car or hire car whilst you are in dispute. If the dealer declines to do this then you can recover any costs incurred for hiring a vehicle and add it to your claim (if you end up issuing).
Write a formal letter to the dealer stating the above and stating that you require the repair/replacement hire car to be effected within 7 days of the date of the letter, failing which you will make an application to Court for a full refunds, expenses and legal fees you incur.
Also state you will contact Trading Standards, www.tradingstandards.gov.uk
, and Retail Motor Industry Federation (if they are a member, http://www.rmif.co.uk/.)
State that you do not wish to speak on the telephone unless it is to arrange a hire car and/or the repair to your car. Fax of email the letter to them and state you wish to correspond only by email.
Once they know you are aware of your rights, dealers tend to be more constructive in resolving these things
If they do not respond to you letter you may have to either issue you ask a solicitor to write a letter before action to the them prior to commencing your claim.
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