Been having some problems with the cars power under boost since I got it, after putting the car into Drivers a few weeks ago I had the Revo Stage II map put on (£570.00) after being told the car was ready to be collected, when I went to pick it up I was told the car was showing 4 error codes on Vagcom and even though the map was installed the car just wasn't performing how it should.
So after some weeks of trial and error, I was told I would need to replace both the following parts at a cost of £112.73
Boost Control Valve
Emmision Control Valve
After installing both, was told the car was now not showing any fault codes and seemed to be making boost now, but wasn't holding the boost when the turbo was coming in...
So after trawling many Golf GTi forums I discovered a few people having issues with the diverter valves on the earlier MK5 models & VW had released a revised version of the valve.. (at the same time Drivers also stumbled across this info..
Saturday I finally tracked down one at Verve in Rutherglen £32.73
Gets the phone call later that day from drivers that this was indeed the suspect all along... (must also add here they fitted free of charge)
You can see where the rubber seal has literally melted away.
Cars now back and running amazing, power from the Revo Stage II is apparently now 265bhp (65bhp increase) [still unconfirmed)
Should also add a big thanks to Drivers really, the guys were always proffesional the whol way through, downloaded every diagram of the car they could, and always fited me in at a minutes notice!!
Total cost: £715.46 :lol: