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Author Topic: waiting for AA recovery  (Read 3269 times)

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Andy H

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Re: waiting for AA recovery
« Reply #60 on: 29 April 2018, 20:57:22 »

Gosh. What a pain. I dislike faults that could be something or nothing. Have you got a you got a younger  family member you could send on a longer journey?  Working on the principle that a breakdown would be an adventure for them rather than a pain for us older folk.
The 28 year old and the 30 year old live  300 miles away and the 2 year old and the 3 year old are a bit too young.....
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dave the builder

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Re: waiting for AA recovery
« Reply #61 on: 29 April 2018, 21:14:09 »

did you check live data (voltage and temp) of the ecu coolant temperature sensor
plus check earth straps etc ?
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Andy H

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Re: waiting for AA recovery
« Reply #62 on: 29 April 2018, 23:14:39 »

did you check live data (voltage and temp) of the ecu coolant temperature sensor
plus check earth straps etc ?
I have checked live data and it gave plausible readings (VCDS doesn't show raw voltage inputs though)

Apparently there is a common earth point somewhere under the battery tray that is a common source of trouble - looks like I will be spending another day pulling the thing apart to try and find it  ::) **sigh**
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Andy H

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Re: waiting for AA recovery
« Reply #63 on: 08 September 2018, 21:13:11 »

Apologies for stirring up a dusty thread.......

Having changed the water pump and fitting a new cambelt kit the bloody thing has run without overheating for several thousand miles (and a few 700 mile round trips) until yesterday.

After a 5 mile trip the gauge went up to 130 degrees just 200 yards from home. I pulled over and tried not to swear at it (kids in the back) and watched the gauge drop straight back to 90 degrees (engine idling) so drove it home and parked it.

4 or 5 hours later I unscrewed the cap on the coolant bottle and it burped and spewed coolant over the battery (another class piece of VW design....).

I have resigned myself to the conclusion that exhaust gases are forcing their way into the cooling system and causing an 'air lock'. I really do not understand why the problem is intermittent though :-\

What are the odds that I can fix it by fitting a new head gasket ?
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STEMO

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Re: waiting for AA recovery
« Reply #64 on: 08 September 2018, 21:17:17 »

Apologies for stirring up a dusty thread.......

Having changed the water pump and fitting a new cambelt kit the bloody thing has run without overheating for several thousand miles (and a few 700 mile round trips) until yesterday.

After a 5 mile trip the gauge went up to 130 degrees just 200 yards from home. I pulled over and tried not to swear at it (kids in the back) and watched the gauge drop straight back to 90 degrees (engine idling) so drove it home and parked it.

4 or 5 hours later I unscrewed the cap on the coolant bottle and it burped and spewed coolant over the battery (another class piece of VW design....).

I have resigned myself to the conclusion that exhaust gases are forcing their way into the cooling system and causing an 'air lock'. I really do not understand why the problem is intermittent though :-\

What are the odds that I can fix it by fitting a new head gasket ?
I wouldn't be fitting a new head gasket hoping that it fixes the problem, you need a proper diagnosis. Else you'll spend a fortune, and a lot of time, fixing things that might not cure it.
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Andy H

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Re: waiting for AA recovery
« Reply #65 on: 08 September 2018, 21:40:29 »

Apologies for stirring up a dusty thread.......

Having changed the water pump and fitting a new cambelt kit the bloody thing has run without overheating for several thousand miles (and a few 700 mile round trips) until yesterday.

After a 5 mile trip the gauge went up to 130 degrees just 200 yards from home. I pulled over and tried not to swear at it (kids in the back) and watched the gauge drop straight back to 90 degrees (engine idling) so drove it home and parked it.

4 or 5 hours later I unscrewed the cap on the coolant bottle and it burped and spewed coolant over the battery (another class piece of VW design....).

I have resigned myself to the conclusion that exhaust gases are forcing their way into the cooling system and causing an 'air lock'. I really do not understand why the problem is intermittent though :-\

What are the odds that I can fix it by fitting a new head gasket ?
I wouldn't be fitting a new head gasket hoping that it fixes the problem, you need a proper diagnosis. Else you'll spend a fortune, and a lot of time, fixing things that might not cure it.
I totally agree - I am just hoping that someone has some experience of what goes wrong with these engines (1.9 PD tdi Volkswagen code "AUY")
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henryd

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Re: waiting for AA recovery
« Reply #66 on: 09 September 2018, 00:06:32 »

Apologies for stirring up a dusty thread.......

Having changed the water pump and fitting a new cambelt kit the bloody thing has run without overheating for several thousand miles (and a few 700 mile round trips) until yesterday.

After a 5 mile trip the gauge went up to 130 degrees just 200 yards from home. I pulled over and tried not to swear at it (kids in the back) and watched the gauge drop straight back to 90 degrees (engine idling) so drove it home and parked it.

4 or 5 hours later I unscrewed the cap on the coolant bottle and it burped and spewed coolant over the battery (another class piece of VW design....).

I have resigned myself to the conclusion that exhaust gases are forcing their way into the cooling system and causing an 'air lock'. I really do not understand why the problem is intermittent though :-\

What are the odds that I can fix it by fitting a new head gasket ?
I wouldn't be fitting a new head gasket hoping that it fixes the problem, you need a proper diagnosis. Else you'll spend a fortune, and a lot of time, fixing things that might not cure it.
I totally agree - I am just hoping that someone has some experience of what goes wrong with these engines (1.9 PD tdi Volkswagen code "AUY")

Friend of mine is having the same issue with his Galaxy,he's done stat and pressure cap and like yours it'll do hundreds of miles (towing tin tent mostly) and then he'll do a Shortish  trip solo and it'll play up,he's done chemical test on coolant for exhaust gases but that was ok.next step is head off but if gasket is sound then pressure test of head will follow
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Andy H

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Re: waiting for AA recovery
« Reply #67 on: 09 September 2018, 23:02:44 »

Friend of mine is having the same issue with his Galaxy,he's done stat and pressure cap and like yours it'll do hundreds of miles (towing tin tent mostly) and then he'll do a Shortish  trip solo and it'll play up,he's done chemical test on coolant for exhaust gases but that was ok.next step is head off but if gasket is sound then pressure test of head will follow

I haven't changed the stat or pressure cap as I tested the stat and that appears to be good and there is generally a big release of pressure when I unscrew the pressure cap.

What I did do today was discover a silly little plastic plug with a hole in it which lives in the pipe which connects to the top of the expansion bottle. After much prodding and poking I managed to extract it from it's hiding place and find that the hole was blocked. Cleaned it, put it back together, started the engine and the coolant (and gas) started flowing. After much burping and farting I had to add another litre of coolant and the interior heater started working :y

Marvelling at another piece of design failure from VW >:( and puzzling over whether the crap in the tiny orifice was
- the original cause of the overheating
- where the crap came from
- whether it came from a failing head gasket
- whether the overheating has caused any permanent damage

Either way I don't have the confidence to take the family on any extended journeys in it in the near future so we went out looking for a replacement / back up mummy bus  ::)
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Doctor Gollum

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Re: waiting for AA recovery
« Reply #68 on: 10 September 2018, 16:33:58 »

Apparently Jimbob is selling a Zafira ;D
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TheBoy

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Re: waiting for AA recovery
« Reply #69 on: 10 September 2018, 17:19:51 »

Apparently Jimbob is selling a Zafira ;D
"One careful owner" ;D
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Kevin Wood

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Re: waiting for AA recovery
« Reply #70 on: 10 September 2018, 17:43:25 »

Apparently Jimbob is selling a Zafira ;D
"One careful non-smokingflatulent owner" ;D
Honest, guv. :y
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Andy H

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Re: waiting for AA recovery
« Reply #71 on: 10 September 2018, 17:51:06 »

Apparently Jimbob is selling a Zafira ;D
"One careful owner" ;D
;D

Going on the feedback I have seen from Zafira owners (including TB) a Zafira hasn't made it on to my short list ::)

Every one I know who has one seems to have inherited it from an aging relative.....
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TheBoy

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Re: waiting for AA recovery
« Reply #72 on: 10 September 2018, 17:54:14 »

Apparently Jimbob is selling a Zafira ;D
"One careful owner" ;D
;D

Going on the feedback I have seen from Zafira owners (including TB) a Zafira hasn't made it on to my short list ::)

Every one I know who has one seems to have inherited it from an aging relative.....
They are not a car you could ever love.  But for a small car, surprisingly practical, and annoyingly reliable
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Jimbob

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Re: waiting for AA recovery
« Reply #73 on: 10 September 2018, 18:51:44 »

Apparently Jimbob is selling a Zafira ;D

And a C3 Picasso as it happens!

Doctor Gollum

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Re: waiting for AA recovery
« Reply #74 on: 10 September 2018, 20:00:18 »

Apparently Jimbob is selling a Zafira ;D

And a C3 Picasso as it happens!
It gets worse :o
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