Colour Coding Red. Type Temperature Switch, intake manifold preheating. VW PASSAT B3/B4 (3A2, 35I) 2.0 16V Saloon Petrol 08/1988 09/1993 FWD 16 136 100. VW TRANSPORTER Mk IV Platform/Chassis (70E, 70L, 70M, 7DE, 7DL, 2.5 Platform/Chassis Petrol 11/1990 04/2003 FWD 10 110 81. ).
