TPS is Volkswagen Trade Parts Specialist............basically the supplier of genuince parts to dealers, but some people get accounts like myself (ex HQ and dealer employee) and gain trade price on parts.If you do not have access to this then do throught the dealer.......just ask them if your car has the part number mentioned.....I bet money on it having one being an AXX.
Changed my inline stat today and the old one was wide open. The car warms up a lot quicker now and does not drop in temperature at idle like before 😊
@AntB here is your definitive answerIf you have two inline stats which is sounds like you do.Buy two of these 4E0 121 113 - https://www.ebay.co.uk/p/Original-Volkswagen-VW-Genuine-Transmission-Cooler-Thermostat-4E0121113/1016963273Then buy some coolant G13 now has superceeded G12You need a special pliers to release the clips as per this thread - http://www.mk5golfgti.co.uk/forum/index.php?topic=78341.0If this is too difficult then go to your local garage and ask them to do it.