The dealer does not allways replace all the parts when they do a cambelt and the way they list the parts isnt too clear either ! Anyway, for the v6 tdi engines a lot goes on parts as you have a rather complex belt system. I allways use the full Contitech cambelt kit wich includes the vibration damper (115 quid part on its own from dealer), genuine thermostat and seal (25 quid), 5L of Longlife antifreeze, aux. belts (2 of) kwp water pump (with metal impeller). If you guys are feeling brave you can buy cambelts kits off ebay for about 160-170 quid but they dont include the vibration damper and are of unknown age or make. I would stress to avoid DAYCO belts for the v6 engines (petrol or diesel) as they're just **** and snap at the joint line thus wrecking the engine- had one failed on one of my cars due to a garage trying to save a few bobs. The powerfull v6 engines came with a Contitech cambelt, even the dealer supplied kits. All tensioners/rollers should be either made by Littens,INA or SKF and they are proven and tested. Stay away from cheap water pumps as the bearings can colapse (fitted a Topran/Isoran-pump to a mate's passat v6 tdi wich he bought from GSF and it started desintegrating after less than 9 months and 7k miles. Topran is also part of Dayco group !) and if it makes you feel safe fit only genuine. I fit KWP/Meyle water pumps as they are made in Germany and feature genuine bearings and in over 5 years i had none failing. The water pumps for the dealer are made by Circoli (made in Italy) and feature plastic impellers...but are over twice the price. For all the above and dynamic testing/seting of injector pump i charge 450 quid(480 with genuine thermostat and seal), parts alone are over 350 pounds trade prices and the job takes between 6 and 8 hours ! I also like to check and replace the aux. belt tensioner bushes and braket especially if the car is high mileage as they wear and when the braket wears out (cast alloy) it costs 115 quid +VAT and it's a pain to replace. The bushes/spindles/seals and bolts i allways have a handfull of these as they are a common failure. I allways flush the coolant (dealer only top it up) and mix it good enough for -30 Celsius. I've done countles cambelts and from time to time i have the odd leaky pump gasket or thermostat seal (done a few to forum members as well) wich might take a little longer but thats unfortunate-i'm afraid ! Regards,
Chris.