VW solves its Wales Rally GB mysteries
Volkswagen has traced its recent Wales Rally GB transmission problems to the use of 2017 development parts.
All three Polo R WRCS suffered driveshaft failures on the opening day of the penultimate round of the world championship and technical director Francois-Xavier Demaison has now confirmed the issue.
He told MN: “We had tested a new sealing system for the [driveshaft] boot and the breather on the CV joint for the 2017 car. It was working well on the new car, so we decided to take this to Wales. Last year on Rally GB, we had a problem with water ingress and we thought this new system would solve that.
“Instead, there was some water and dust ingress. When we were doing the testing with the 2017 car, we didn’t do the long road section driving – I think this is what caused it. There was a build up on the seals in the boot and that sucked in some of the dust. At the end of the opening day, we changed back to the 2016 part at the Friday night service. Small things can have consequences.”