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Yes, seat needs to come out. Only 4 bolts and 1 multi plug.

I changed my seat mat myself. No special tools required. Remove seat, work your way around the cover then with 2 pairs of plyers, open the upholstery clips. Fit new mat, and put back together. 1 hour for the base mat start to finish. But I agree. Takes a fair time to get hot.

90% sure its gonna be cam and crank correlation. Get timing checked. Normally see this when someone does a cambelt (badly)

Mine has 215000 miles never caused q problem.

Just an update, after checking wiring thoroughly and measured voltages, fault found within drivers base heat mat. Replaced with genuine skoda part, all good. Easier job than I expected.

Do you have a part number? Just spoke again with tps, they said again "no filter"

I spoke with tps, my 62 regarding superb doesn't have a filter. I'm going take the pump out and inspect it anyway.

So, I have done the cambelt, but that was after the vibration issue. So rule that one out. My vibration is not ending speed related its more load or torque related. No, I didn't replace the rubber joints, but tried a complete new prop, which had no difference.

Got vcds, no faults store or current.

The haldex had an oil change recently by myself, no history in service book of previous maintenance regarding haldex, same with rear diff.

Yes, fwd, puts the traction and tpms light on. But no vibration.

Lots. 215000.

HI, hope you can help. I have a 2012 superb 4x4 170cr which has developed a vibration which is noticeable when travelling at 70mph under load. The vibration feels like its coming through the chassis as if its under the middle of the car. As soon as I remove the haldex fuse it goes. I suspected propshaft imbalance, tried a different one. No different. Any ideas? Regards.

Just changed mine, £100 incl vat Euro car parts. 6mins to fit max