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Vauxhall Zafira coolant loss

2007 Vauxhall Zafira Problem

The Problem:

this has drive vauxhall stumped, coolant loss noticed in expansion tank over a period of 3-4 months 1-inch this is supposed to be a sealed unit rarely needing topping up no leaks noticable vauxhall have pressure tested before with no results, there is a smell of dryness from the engine compartment like when coolant escapes through radiator fins of old if you know what i mean, this is not my first adventure with vauxhall, i have had a 06 plate vectra with same problem, dv could not find that coolant loss either, a friend who owns a back street garage put it on high ramps with a powerfull lamp found it was loosing from side of water pump..

Ref#7320
CarVauxhall Zafira 1.9cdti design diesel
Year2007
OwnerSTEVERAD
Posted11/01/2011


More Vauxhall and Zafira problems


Solution 1

whittingehame | Legend | Since: Oct 2009 | Posts: 443 | Fixes: 9027 | View Garage
Suggested Solution

Most cars are a sealed cooling system . If it's taking 3/4 months to drop an inch and nothing showing on pressure test , check cap on header tank .


Posted on Tuesday 11th of January 2011
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From Original Poster

STEVERAD | Driver | Since: Jan 2011 | Posts: 0 | Fixes: 1 | View Garage
Suggested Solution

thanks for your advice, the cap looks ok, how can you tell if this may be the problem..??


Posted on Tuesday 11th of January 2011
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Solution 2

whittingehame | Legend | Since: Oct 2009 | Posts: 443 | Fixes: 9027 | View Garage
Suggested Solution

I think this was an Astra with a similar fault ,only using a lot more coolant than your car , but explains the gist of a faulty cap and how it can be hard to find .

" The one that fools most inexperienced mechanics is the coolant leak caused by the expansion tank cap, the yellow one. I had random coolant leaks and no one could find anything wrong with the car. It was pressure tested at Lookers and kept for a day. Six mechanics and a supervisor couldn't diagnose it. It then went to an independant Vauxhall specialist who pressure tested it and drove it, but couldn't find how the coolant was vanishing! I had a 5 litre container of red coolant and was topping up every few days, sometimes every week. Sometimes the car would scream after driving up hills! Another main dealership, Arnold Clarke, suggested that was caused by the brakes, but there was nothing wrong with them. All this because they couldn't look for an error code. I was shocked by how little some of the mechanics knew. Most have a computer to search on for fixes!
I replaced the cap on the coolant expansion tank and this solved the problem instantly. The rubber seals had gone a bit funny and the small plunger held by a spring under the top of it was lifting - this caused steam to vent through the actual thread. That's why it screamed! "

Hope this helps you .



Posted on Tuesday 11th of January 2011
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From Original Poster

STEVERAD | Driver | Since: Jan 2011 | Posts: 0 | Fixes: 1 | View Garage
Suggested Solution

Have you had a look at this similar problem: coolant loss

This message was auto-generated based on a user suggestion.


Posted on Wednesday 12th of January 2011
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From Original Poster

STEVERAD | Driver | Since: Jan 2011 | Posts: 0 | Fixes: 1 | View Garage
Suggested Solution

many thanks for your advice will give it a go..sr


Posted on Wednesday 12th of January 2011
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Question

H4ylee | Driver | Since: Jan 2014 | Posts: 0 | Fixes: 0 | View Garage
Suggested Solution

I have the same problem as above, but my car completely cut out yesterday, and still won't start, could it be the same problem or something completely different?


Posted on Monday 27th of January 2014
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