Having a problem with cold start wiht my 1.9 awx engine superb in morning Thought it might be heater plugs as there is 221000 miles on car so checked these indeed three were gone so I replaced the set. Didn't make any difference so I checked the power on switch on no power, so next is the relay and fuses I know they are located behind the fuse box but can anyone tell me which relay controls the glow plugs and also where is it located. Also is there anything else that could be causing the plugs n