Unfortunately that is what the dealers charge. I doubt you would get it cheaper at another franchise.
However, What Car say:
• Shop around – costs even vary between franchised dealers, so don’t just return to the one where you bought your car.
•
You can now get your car serviced at a non-franchised garage without invalidating your warranty, so call local workshops for prices too.
• If you do go to an independent garage, ensure it is VAT-registered and make sure the parts and fluids used are genuine manufacturer products. Get receipts and part serial numbers to prove this.
• Always stick to your car’s servicing schedule and ensure that the servicing book is stamped.
• Always read your warranty document thoroughly before booking your car in for servicing.
• If your car needs a repair or some warranty work carried out, however, this must be done at a franchised dealer in order to keep your warranty intact.
The law changed last year. I think you need to find a Nissan Approved Garage or something. All the legal information you need should be available in the small print of your warranty if u have the time to go through it.
If you go with an independent I would be interested to hear the difference in costs. I had my P1 done at the dealer last month for just over £200 but i use them because they are efficient and their customer service is really good
Good Luck!