That's reassuring, thanks for the comment.I've been getting those for some years from my garage with the MOT. Looks like your brakes are pretty even Andy, especially across the back axle Nothing needed to do there, I'd say.
That lower one is the radiator fan switch if I remember correctly.Today I've changed the top coolant temp sensor, didn't know till today there's one on the bottom as well, it's been long needed. Took much more time than I thought, like always, even though I've been preparing :/
The bottom blue sensor was stuck, almost broke clip off, but came off eventually, rusty U clip off, then bottom hose as well. Coolant sprayed everywhere of course. I'd taped off electric bits before which helped a lot, also I'd disconnected battery negative.
View attachment 97800
Then I'd removed the top coolant hose to reach the sensor, but to my surprise even more coolant came out, not sure why, reservoir was empty. Covered it with plastic bag to guide it towards the rest of the collected coolant.
Then pulled U clip off, out came the sensor. Easiest part to be fair. Bit more coolant of course.
View attachment 97801Looked kinda rusty, no surprise I haven't seen steady 90 since I've had the car for over 3 years, but I usually drive short distances so didn't really matter.
Shall I change the blue bottom dual temp switch as well? How do I know if that's failing?
I put all back together, made sure all clicks where they should, and temp sensor just sits lightly with new rubber seal and clip, then refilled coolant slowly but, now it was leaking of course. But much worse than for years before. Not good. So after checking and cleaning up, not finding real cause as all surrounding was wet, I've tried moving top short hose up and tightened it up again was my best guess, hoping the plastic L isn't actually cracked.
Then reconnected the - terminal, double checked all bits back in place, parked car up, then I went for a swim in the sea to cool down, as it took me like 3 hours, with things like fishing out dropped bolts and filtering used coolant back in the bottle, as bits fell in it.
I hope the dripping has stopped now, or tomorrow morning I'll have an empty reservoir and a massive puddle around the car :/
Also as an extra I've checked the earthing points before all that, behind bottom of A pillars and under the reservoir, all was solid, but another surprise a big chunk was missing from the cover...never noticed that, looks old damage too. Not sure how I'd missed it before. View attachment 97802
I've tapped it up, I'll check on it later.
So I didn't have time, and patience, to change the transmission oil and docompression test, but I'll try to get them done this week :/
The diagram says top is a thermo switch, bottom is a dual thermo switch. So I guess dual temp sensor?That lower one is the radiator fan switch if I remember correctly.
Hi Sylvester,Today I've changed the top coolant temp sensor, didn't know till today there's one on the bottom as well, it's been long needed. Took much more time than I thought, like always, even though I've been preparing :/
The bottom blue sensor was stuck, almost broke clip off, but came off eventually, rusty U clip off, then bottom hose as well. Coolant sprayed everywhere of course. I'd taped off electric bits before which helped a lot, also I'd disconnected battery negative.
View attachment 97800
Then I'd removed the top coolant hose to reach the sensor, but to my surprise even more coolant came out, not sure why, reservoir was empty. Covered it with plastic bag to guide it towards the rest of the collected coolant.
Then pulled U clip off, out came the sensor. Easiest part to be fair. Bit more coolant of course.
View attachment 97801Looked kinda rusty, no surprise I haven't seen steady 90 since I've had the car for over 3 years, but I usually drive short distances so didn't really matter.
Shall I change the blue bottom dual temp switch as well? How do I know if that's failing?
I put all back together, made sure all clicks where they should, and temp sensor just sits lightly with new rubber seal and clip, then refilled coolant slowly but, now it was leaking of course. But much worse than for years before. Not good. So after checking and cleaning up, not finding real cause as all surrounding was wet, I've tried moving top short hose up and tightened it up again was my best guess, hoping the plastic L isn't actually cracked.
Then reconnected the - terminal, double checked all bits back in place, parked car up, then I went for a swim in the sea to cool down, as it took me like 3 hours, with things like fishing out dropped bolts and filtering used coolant back in the bottle, as bits fell in it.
I hope the dripping has stopped now, or tomorrow morning I'll have an empty reservoir and a massive puddle around the car :/
Also as an extra I've checked the earthing points before all that, behind bottom of A pillars and under the reservoir, all was solid, but another surprise a big chunk was missing from the cover...never noticed that, looks old damage too. Not sure how I'd missed it before. View attachment 97802
I've tapped it up, I'll check on it later.
So I didn't have time, and patience, to change the transmission oil and docompression test, but I'll try to get them done this week :/
I think the problem is there are a few oddities with the A2, despite it sharing many parts from other VAG cars of the era. In this case the lack of a pick-up pump in the fuel tank makes priming the fuel system a pain, especially if you haven't clamped the fuel pipes when changing the filter.Just went to collect my car after a full service including fuel filter change. Now they can't start it. This happened before. What a pain! I hope they don't knacker the battery or starter.
PS I've seen all the posts on various techniques to fix. They say they do 15 to 20 fuel filters a week. They are an Audi/VW/Skoda specialist. I think they should be aware of all the mitigation procedures by now or is our A2 a real pain in the proverbial for garages.
Yup it does indeed run the fan.That lower one is the radiator fan switch if I remember correctly.
@kp115 @audifan Yes you're both right, to be honest I've had no idea what the counter balancer meant, until I've seen it moving and in 2nd gear it can touch the earth cable
I've also noticed, The counter balancer bolt in the middle is kind of loose, I can turn it with my fingers. Is that normal, or it'd be full tight? Thanks
View attachment 97805