original guvnor wrote: If you don't care about the value of the car because you are long term owner that's fine but if you want to move the car on at some point you will have to accept that incomplete or self-service history will seriously damage the value of your car and will restrict the potential number of buyers.
I disagree with the part of this statement that refers to self-servicing. It's wrong to assume that someone self servicing their cars does not care about its future value. I DO care about the future value of my current and past cars. For reference self-servicing has never given me any trouble when it comes to selling them privately or achieving the money I expected.
Incomplete servicing or self servicing with no evidence or receipts is a completely different matter and would make me walk away or expect a discount to balance the gamble.
Owners self-service for a number of reasons and done correctly has a number of benefits:
You have control over what parts and fluids are used.
It saves money, money that then allows you to service more frequently than recommended and potentially offsetting any loss in re-sale value, if there is any.
If you believe in your abilities you know the job is done right: everything tightened correctly, cleaned as you go, new washers and gaskets fitted etc.
It's usually enjoyable and part of sports car ownership IMO.
You can keep a close eye out for wear or changes between services, particles in oil etc.
There are some downsides, including that it narrows potential buyers as it may prove harder to part exchange at a garage and as has been said, some potential owners may overlook a self serviced car.
We can agree to disagree about the merits or otherwise of self servicing, but felt the need to defend the "If you don't care about the value of the car......will seriously damage the value of your car". It 'may' damage the resale of your car if you have an ultra low mileage, cotton wool wrapped minter or you intend to trade it in to a main dealer but for your average 50k to 100k example sold privately it shouldn't greatly affect value IMHO (with the caveat that self servicing doesn't consist of a 5w40 budget oil change once every 2 years!).
Self servicing is here to stay and if anything will become more common as the cars get older. A potential buyer must decide for themselves on the merits of a particular car and evidence or otherwise of servicing. I can only encourage those who do work on their cars themselves to service on time or even more regularly, photograph the work, keep every receipt in a nice file and post about it on here.
As and when I sell my car (which is increasingly likely the more I read some of the posts on here) I will post the final value on here, along with money spent and saved and you can judge for yourselves.
Dave