Door locking problems 75 Tourer

Andrew Craig · 30th October 2010, 11:00

Many thanks to those that responded with their helpful suggestions to the earlier problem . Unfortunately, the problem of rain and door locking issue stated previously has not gone away. When locked and its been raining the the lights would flash twice, as it would to indicate that the doors are locked, but would then would continue to repeat this after intervals of 4/5 mins . Also if I leave the doors unlocked the system would automatically lock them again.
Before spending further monies getting the ECU/BCU tested is anyone aware of earthing problems/weaknesses that I could check? .....the problem seems only to occur when the car is damp leading me to think that one of the sensors /targets in the doors(?) is the weak point?.

Many Thanks

Andrew

Greeners · 31st October 2010, 21:09

Andrew

Assuming the car is parked on the level when it rains, there's not many places the water can get in without leaving a trace.

If your happy to do some basic stuff, I would check the following

ECU - pull it out from the plenum, and see if there is any tide marks or signs of water ingress

BCU - remove the glove box for better access, again remove it and check the 2 connectors for signs of corrosion.on both sides.

Bonnet switch - remove the switch (bit of a pain) and check the connector for signs of corrosion.

Andrew Craig · 1st November 2010, 20:32

Thanks David , will give them a try. Not quite sure if I'm diy savvy enough but here goes.

Regards
Andrew

30th October 2010, 11:00	#1
Andrew Craig Newbie 75 Tourer Join Date: Oct 2010 Location: Chepstow Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	Door locking problems 75 Tourer Many thanks to those that responded with their helpful suggestions to the earlier problem . Unfortunately, the problem of rain and door locking issue stated previously has not gone away. When locked and its been raining the the lights would flash twice, as it would to indicate that the doors are locked, but would then would continue to repeat this after intervals of 4/5 mins . Also if I leave the doors unlocked the system would automatically lock them again. Before spending further monies getting the ECU/BCU tested is anyone aware of earthing problems/weaknesses that I could check? .....the problem seems only to occur when the car is damp leading me to think that one of the sensors /targets in the doors(?) is the weak point?. Many Thanks Andrew

31st October 2010, 21:09	#2
Greeners Moderator MG-ZTT Join Date: Mar 2007 Location: Ware, Herts Posts: 19,798 Thanks: 161 Thanked 1,249 Times in 1,036 Posts	Andrew Assuming the car is parked on the level when it rains, there's not many places the water can get in without leaving a trace. If your happy to do some basic stuff, I would check the following ECU - pull it out from the plenum, and see if there is any tide marks or signs of water ingress BCU - remove the glove box for better access, again remove it and check the 2 connectors for signs of corrosion.on both sides. Bonnet switch - remove the switch (bit of a pain) and check the connector for signs of corrosion. __________________ *David* Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics]

1st November 2010, 20:32	#3
Andrew Craig Newbie 75 Tourer Join Date: Oct 2010 Location: Chepstow Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	door locking problem Thanks David , will give them a try. Not quite sure if I'm diy savvy enough but here goes. Regards Andrew