No 103 Glow plug relay. Fits diesel T4s from 1996 to 2003, and T5s from 2003 to 2006. Problems starting up in the morning?. If your glowplugs are working properly, a possible cause is a faulty relay.
Glowplug Relay No 103 VW T5 2003–2006
VW Classic 4-Pin Warning Buzzer Relay (No. 36) HLO Summer 3SB00488504 3A0951307
Upgrade Your Car's Turn Signal with 12V Flasher Relay No More Bulb Burnout
Power Supply Relay no. 109 VW T4 2500cc TDI 1997–2003
