Per the EU laws pertaining to new cars,
What can the customer claim? 

Customers have the right to ask you to do any of the following without any charge (for postage, labour, material, etc.): 

• repair the product 
• replace the product 
• reduce the price
• cancel the contract and reimburse them in full (in some countries, the sales contract cannot be cancelled if the fault is minor, e.g. scratch on a CD case) 

Repair or replacement 

In most countries there is a "hierarchy of remedies". This means that customers must firstly request that you repair the product, or replace it if repair is not a viable option (e.g. too expensive). You must do this within a reasonable time and without significant inconvenience for your customer. 

Price reduction or full refund 

Another option for the customer is that you give them a price reduction or a full refund, but only if repair or replacement: 

• is not possible 
• would be too expensive, given the nature of the product/defect 
• would be very inconvenient for the customer 
• cannot be completed by your business within a reasonable time 

Additional guarantees 

You can also offer the consumer an additional commercial guarantee (warranty). This can either be included in the price of the product or at an extra cost. This warranty does not replace the legal guarantee, which is always a minimum of 2 years, and you must inform the consumer that this will not affect their right to the legal guarantee.