Windscreen Wiper - Occasional Total Failure

triple e · 11th September 2017, 21:51

Rover 75 CDI Connoisseur SE Saloon (2001)

The problem is the wipers totally fail to operate occasionally and have done for 2 to 3 months. Twice been to Rover garage (Staddons of Budleigh Salterton) and wipers have worked all day long while with them - so no fault found and no repair effected.

Today wipers worked with no problems on and off for a 1 hour drive this morning but not at all on the return trip - which was not easy or safe due to rain showers.

The garage is usually my last resort but having tried everything I needed a quicker fix than I could achieve.

I'm now stuck and requesting any advice from any member please on how to sort this frustrating (and dangerous) problem.

I will check the plenium yet again tomorrow but this has been checked so often with no obvious blockage or wet ECU that I not expecting this to be the cause of my problem.

Chuckles · 12th September 2017, 04:40

Do they fail completely or go into intermittent mode?
Is the speedo working during off/failure?
If so take a look at the ABS connector it is prone to water ingress particularly when heavy rain flooding.
check my posting on ABS/TC in tech. https://www.the75andztclub.co.uk/for...d.php?t=247845

triple e · 12th September 2017, 07:52

Thanks for your response - much appreciated.

The wipers fail completely - not working in any mode. Washers still work also. This has occurred sometimes for minutes, other times for 3 days or more.

There were no other 'failures' during this wiper failure state - no other problem while they worked either. A real frustrating problem which is a real danger when driving and wipers do not work when required.

Any thoughts or suggestions welcomed please.

T-Cut · 12th September 2017, 08:23

Quote:

Originally Posted by triple e

Rover 75 CDI Connoisseur SE Saloon (2001)
The problem is the wipers totally fail to operate occasionally and have done for 2 to 3 months.

Have a read through these, I'm sure there will be clues. A T4 session will also help. https://cse.google.com/cse?cx=013872...king&gsc.sort=

TC

triple e · 20th September 2017, 17:04

Many thanks T-Cut - your information helped me understand the garage work.
It was the red/green wire circuit failure from the BCU to the wiper relay which was the cause of the wiper failure.
The section removed was passed to me - this included a previously repaired section where a length had been soldered in to replace a previous failure.
The problem was one end was soldered correctly - the other was not (it was a 'dry' joint). This had been corroding and resulted in the problem.
This all goes to show nothing can be taken for granted.
Thanks for all information

11th September 2017, 21:51	#1
triple e Regular poster Rover 75 Saloon, Connoisseur CDT SE Automatic 4 Door Join Date: Apr 2009 Location: Exeter Posts: 71 Thanks: 67 Thanked 1 Time in 1 Post	Windscreen Wiper - Occasional Total Failure Rover 75 CDI Connoisseur SE Saloon (2001) The problem is the wipers totally fail to operate occasionally and have done for 2 to 3 months. Twice been to Rover garage (Staddons of Budleigh Salterton) and wipers have worked all day long while with them - so no fault found and no repair effected. Today wipers worked with no problems on and off for a 1 hour drive this morning but not at all on the return trip - which was not easy or safe due to rain showers. The garage is usually my last resort but having tried everything I needed a quicker fix than I could achieve. I'm now stuck and requesting any advice from any member please on how to sort this frustrating (and dangerous) problem. I will check the plenium yet again tomorrow but this has been checked so often with no obvious blockage or wet ECU that I not expecting this to be the cause of my problem.

12th September 2017, 04:40	#2
Chuckles Gets stuck in NOW a Club Tourer was 1999 - 75 2.0Ltr Connoisseur SE petrol Saloon Join Date: Jan 2012 Location: Iwerne Minster, Dorset Posts: 552 Thanks: 63 Thanked 54 Times in 47 Posts	Do they fail completely or go into intermittent mode? Is the speedo working during off/failure? If so take a look at the ABS connector it is prone to water ingress particularly when heavy rain flooding. check my posting on ABS/TC in tech. https://www.the75andztclub.co.uk/for...d.php?t=247845 __________________ Chuck Nth. Dorset. UK Membership #1896 Don't take life so seriously.... it is not permanent! Last edited by Chuckles; 12th September 2017 at 04:43..

12th September 2017, 07:52	#3
triple e Regular poster Rover 75 Saloon, Connoisseur CDT SE Automatic 4 Door Join Date: Apr 2009 Location: Exeter Posts: 71 Thanks: 67 Thanked 1 Time in 1 Post	Thanks for your response - much appreciated. The wipers fail completely - not working in any mode. Washers still work also. This has occurred sometimes for minutes, other times for 3 days or more. There were no other 'failures' during this wiper failure state - no other problem while they worked either. A real frustrating problem which is a real danger when driving and wipers do not work when required. Any thoughts or suggestions welcomed please.

20th September 2017, 17:04	#5
triple e Regular poster Rover 75 Saloon, Connoisseur CDT SE Automatic 4 Door Join Date: Apr 2009 Location: Exeter Posts: 71 Thanks: 67 Thanked 1 Time in 1 Post	Many thanks T-Cut - your information helped me understand the garage work. It was the red/green wire circuit failure from the BCU to the wiper relay which was the cause of the wiper failure. The section removed was passed to me - this included a previously repaired section where a length had been soldered in to replace a previous failure. The problem was one end was soldered correctly - the other was not (it was a 'dry' joint). This had been corroding and resulted in the problem. This all goes to show nothing can be taken for granted. Thanks for all information