Bought my 1st ever Skoda (Ambiente 1.9TDi '55 reg, 75000 miles on the clock); so far its prooved to be an excellent buy.

Had an 8oK miles service with belts change etc on a "variable" interval, which the dealer claimed to be every 40K or 2 years whichever is the sooner.

However, following a "tip & trick" from this site, the computer is telling me that it is due another service in 15,200 miles (huge difference)!

Was the dealer correct but set the computer wrong by mistake, or does the computer gauge the interval according to the work the engine goes through (95% city driving)?

Can anyone guide me on this?........Many thanks.

If it is set on variable the car will tell you when the service is due and it is not down to time or the dealer saying it's time for a service

Variable is approx every 20K or 2 years, the computer display is an estimate and may go down slower than the current estimated mileage to next service.

Was the dealer correct but set the computer wrong by mistake, or does the computer gauge the interval according to the work the engine goes through (95% city driving)?

Variable servicing is calculated according to what sort of driving you do. If you do lots of driving in heavy traffic, short trips, engine often cold etc this is hard on your motor so you will need servicing much more frequently than someone who does lots of long highway drives.

The dealer should have told you that you MAY get longer service intervals, depending on driving style. Have a look at your owner's manual to see what the manufacturer says.

my strong advise for people is to avoid variable servicing if this is your car which you paid for and own as opposed company car and you get to give it back.

reason as to why is we are seeing heavily sludged oil systems and oil pick up and engine failures due to this sludging on audi's on the same variable servicing, full history cars.

oils clearly are not up to these extended milage levels... 10k oil & filter change remains our advise to customers. Oil is not that good to last 20k miles from what we're seeing.

specmanship from manufacturers i fear is the cause..

be carefull.