Om jag minns rätt var alla relä i vid säkringshållaren numrerade med olika nummer.
Jag hittade en Haynes för Golf/Jetta med bla samma motor men där är det inte lätt att hitta heller det står bara:
Citat:
Wiring relays and connections – all models
1 Vacant
2 Intake manifold preheating relay (carburettor models) or fuel
3 Seat belt warning system relay
4 Gearshift indicator control unit
5 Air conditioner relay
6 Dual tone horn relay
7 Relay for foglights and rear foglight
8 Relief relay for X contact loom
10 Intermittent wash/wipe relay
11 Rear window wiper relay
12 Turn signal flasher or trailer towing warning relay
13 Seat belt warning system (interlock) or rear window, driving
lights and oil pressure warning relay
14 Window lift or seat belt warning system relay
15 Headlight washer relay
16 Control unit for idling speed increase
17 Fuse for rear foglight
18 Control unit for coolant shortage indicator
19 Thermo fuse for window lifters
20 Switch unit for heated driver’s seat
21 Switch unit for heated passenger’s seat
22 Switch unit for overrun cut-off
23 Vacant
24 Vacant
Relays are symbolised as a number in a black box
Not all relays are fitted to all models
Connections
A Multi-pin connector (blue) for dash panel loom
B Multi-pin connector (red) for dash panel loom
C Multi-pin connector (yellow) for engine compartment loom left
D Multi-pin connector (white) for engine compartment loom right
E Multi-pin connector (black) for rear wiring loom
G Single connector H Multi-pin connector (brown) for air conditioner or wiring loom
K Multi-pin connector (transparent) for seat belt warning system
L Multi-pin connector (black) for lighting switch terminal 56 and dip and flasher switch terminal 56b (carburettor models) or multi-pin connector (grey) for dual tone horn (injection models)
M Multi-pin connector (black) for lighting switch terminal 56 and dip and flasher switch terminal 56b (injection models)
N Single connector for separate fuse (manifold heater element)
P Single connector (terminal 30)
R Not in use
Frågan vilket av dessa relän kan användas för värmaren i en VW med mono-motronic hittar jag inget svar på. Kanske 22 eftersom den bara används på bilar med förgasare?
Däremot fann jag lite annat bra att veta.
Citat:
Heater element
1 The inlet manifold is preheated by coolant from the cooling system and by a heater element located in the bottom of the inlet manifold.
2 To check the heater element, the engine should be cold. Disconnect the wire from the element at its in-line connector, then attach an ohmmeter between the wire connector from the element and earth. This should record 0.25 to 0.50 ohm.
3 To remove the element, disconnect the wire then unscrew the bolts and withdraw the unit. Remove the sealing ring and gasket (see illustrations). When refitting, always renew the sealing ring and gasket.
Thermo-switch
4 On 1.05 and 1.3 litre engines, the heater element is controlled by a thermo-switch located in the coolant supply hose to the inlet manifold. On 1.6 and 1.8 litre engines, the thermo-switch is located in the top of the coolant hose connecting piece mounted on the side of the cylinder head.
5 Before removing the thermo-switch, drain off some engine coolant to reduce spillage when the switch is removed. 6 To test the thermo-switch, first detach the lead connector. Unscrew and remove the switch from the housing and plug the hole to stop any leakage of coolant.
7 With an ohmmeter connected to the terminals, gradually heat the base of the switch unit in hot water. Below the following temperatures there should be zero resistance (ie. internal contacts closed):
1.05 litre engine: 65°C
1.3, 1.6 and 1.8 litre engines: 55°C
8 Above the following temperatures there should be a maximum resistance (ie. internal contacts open):
1.05 litre engine: 75°C
1.3, 1.6 an d 1.8 litre engines: 65°C
9 If defective, the switch must be renewed.
En switch från en 1,1l motor skullle kanske passa lite bättre är man kör med E85!