OD not working

Aug 1st, 2002, 22:44

My OD is not working, where should I start looking?

George

'87 745 GLE Turbo Diesel Intercooler
'88 745 Turbo Intercooler

PS. I buy these cars just so that I can post here.

Peter Milnes · Aug 2nd, 2002, 23:34

Fuse, Relay, Switch and Solenoid. Fuse is in fuse tray, as is relay. Switch is on gear lever with indicator light on instrument panel (in row of check lights) and the solenoid is on the side of the overdrive unit. Switch is tricky but may be just a wire fallen off. Solenoid controls the overdrive by opening two ports to allow the fluid to complete the shifting arrangement. Sometimes , if it appears to be the solenoid (other items OK), the ports get blocked with muck but can be cleaned out with the solenoid removed. It would be worthwhile replacing the two o-ring seals if this job is necessary. Again the wiring to the solenoid is fairly exposed and can come adrift.

All the best, Peter.

Aug 7th, 2002, 17:59

Got a new relay and now it works, but only occasionally. Is this a clean out of the ports thing?

George

'87 745 GLE Turbo Diesel Intercooler
'88 745 Turbo Intercooler

Peter Milnes · Aug 8th, 2002, 00:12

Could still be a dodgy connection but perhaps in the gear lever switch.

All the best, Peter.

Aug 8th, 2002, 08:06

Gear lever switch is fine, the relay clicks every time and the light comes on. Just no "action".

George

'87 745 GLE Turbo Diesel Intercooler
'88 745 Turbo Intercooler

Peter Milnes · Aug 8th, 2002, 23:25

Check the wiring to the solenoid first, then remove solenoid (if it is OK) and clean the ports, then replace the solenoid with new O-ring seals. If solenoid is not OK replace it.

All the best, Peter.

Aug 1st, 2002, 22:44	#1
George Holmer Guest Location:	OD not working My OD is not working, where should I start looking? George '87 745 GLE Turbo Diesel Intercooler '88 745 Turbo Intercooler PS. I buy these cars just so that I can post here.

Aug 2nd, 2002, 23:34	#2
Peter Milnes Premier Member Last Online: Apr 10th, 2014 00:01 Join Date: Feb 2002 Location: Tonyrefail	RE: OD not working Fuse, Relay, Switch and Solenoid. Fuse is in fuse tray, as is relay. Switch is on gear lever with indicator light on instrument panel (in row of check lights) and the solenoid is on the side of the overdrive unit. Switch is tricky but may be just a wire fallen off. Solenoid controls the overdrive by opening two ports to allow the fluid to complete the shifting arrangement. Sometimes , if it appears to be the solenoid (other items OK), the ports get blocked with muck but can be cleaned out with the solenoid removed. It would be worthwhile replacing the two o-ring seals if this job is necessary. Again the wiring to the solenoid is fairly exposed and can come adrift. All the best, Peter.

Aug 7th, 2002, 17:59	#3
George Holmer Guest Location:	RE: OD not working Got a new relay and now it works, but only occasionally. Is this a clean out of the ports thing? George '87 745 GLE Turbo Diesel Intercooler '88 745 Turbo Intercooler

Aug 8th, 2002, 00:12	#4
Peter Milnes Premier Member Last Online: Apr 10th, 2014 00:01 Join Date: Feb 2002 Location: Tonyrefail	RE: OD not working Could still be a dodgy connection but perhaps in the gear lever switch. All the best, Peter.

Aug 8th, 2002, 08:06	#5
George Holmer Guest Location:	RE: OD not working Gear lever switch is fine, the relay clicks every time and the light comes on. Just no "action". George '87 745 GLE Turbo Diesel Intercooler '88 745 Turbo Intercooler

Aug 8th, 2002, 23:25	#6
Peter Milnes Premier Member Last Online: Apr 10th, 2014 00:01 Join Date: Feb 2002 Location: Tonyrefail	RE: OD not working Check the wiring to the solenoid first, then remove solenoid (if it is OK) and clean the ports, then replace the solenoid with new O-ring seals. If solenoid is not OK replace it. All the best, Peter.

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