Ok, so my dad is possibly going to change his car(2007 Touran 1.9 tdi). The reason being that last time he got it serviced the mechanics told him the flywheel has started to go(Dual-Mass Flywheel) and it will cost 1500€ to replace it. It's on ~125 000km When I told my cousin about this he was like "the flywheel is just a solid piece of metal, there's nothing to wear on it, the clutch is what usually wears out"(don't judge him too hard, these weren't his exact words) My question is: How does flywheel wear occur? What exactly wears out?
Did you look here? https://en.wikipedia.org/wiki/Dual_mass_flywheel Also... via www.rac.co.uk/forum/...
Flywheels don't really wear out, but dual mass flywheels do. It's more or less a sprung coupler between the engine and clutch which further smooths out torque delivery from engine to clutch. Most of them work with springs between two flywheels that absorb sudden variations in RPM and smooth it to a more predicable output that the clutch (operated by the driver) can manage with less shuddering. Naturally, these springs and other moving parts of the mechanism wear out with time and use. There's always a great animation which helps visual learners
hypothetically a standard one wears too, just, how do you wear a solid metal disk? You wear straight through it, that would take alot of clutches to do though, realistically wont happen
