I purchased a 2018 Toyota Auris last year - just over three years old. The main dealers I purchased from have called me to book it in for service and MoT. Apparently, this is a major service, and will cost £340 plus MoT on top, so around £400 - eye watering! I called an alternative family operated established garage for a comparative price and the major service was £165, and they'd do a reduced price MoT if I serviced it there. I bought the car at 49,073 miles and it has now done 53,500 approx, so only 4,500 miles over the last year. When I challenged the price, and told them of the alternative, he said that spark plugs alone cost £50, and that for that price, I could not expect the other garage to do as proficient a job as the main dealer would.

There are some issues with damp/condensation inside the vehicle, and in a headlight unit as well, and tracking/pull/alignment so I might need these things done under warranty. I feel obliged to go there, so I can hope to maintain the goodwill for sorting these issues out.

I would greatly value some opinions on what I should do please, including whether I invalidate my Toyota warranty/or should worry about loss of goodwill from the main dealer if I go to the alternative (non-main dealer) garage for servicing?