hanees97 Posted March 16 Share Posted March 16 So about 6/7 months into ownership I've got a really weird issue with my A3 8V. About 30-40mins into driving, my stop/start and say Automatic Stop/Start System Fault: Function Not Available, my heater fan speed gets reduced and doesn't work at full fan speed and the engine revs at 1100rpm when idle. I've only started to experience these faults when the car was sat for 6 days and it popped up with a message saying Low Battery: Battery will charge during drive but since then I've covered 400 miles which has been motorway mileage. So I thought it might be the battery on it's way out but I got the battery tested and it's 91% health. Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 16 Share Posted March 16 Thanks Hanees, Who tested the battery, and what parameters did they test? Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 16 Author Share Posted March 16 (edited) Hi Gareth, I think he connected some sort of machine to the car which tested the battery health and voltage, I got it tested from a place called Car Spares Edited March 16 by hanees97 Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 16 Share Posted March 16 The symptoms you describe are typical (but not restricted to) a failing battery. Ability of your test to declare it totally serviceable in all respects?? Do you know how old the battery is? Make may give a clue if you don’t know. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 17 Author Share Posted March 17 Hi Gareth, I have no idea how old it is but the it was made by Tungstone, I've attached a picture below it does seem old though Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 17 Author Share Posted March 17 I've attached to screenshot's below, I purchased OBD tool to get some readings from the battery. I put the key into ignition and at the beginning the battery condition was at 78%. Then I switched on the headlights and the heater but left the engine off and it started to get lower and eventually went to 65%. Is the battery just degrading too quickly? The screenshot with it at 14V was with the engine running and I thought that it was a pretty normal voltage reading? Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 17 Share Posted March 17 Hello Hanees, Tungstone would not have been the original battery, but it has been - still is? a bought out brand name from 2009. Having said that it appears ‘the company’ was dissolved in 2019, so your battery could be at least 5 years old, and if so is probably passed its prime. Of course Hanees, I cannot claim your symptoms are totally due to an ailing battery, but it wouldn’t surprise me if they were. If you do decide to renew it, I’ve bought Exide Premium from Tayna Batteries ( no connection with the company) to good avail in recent times. There are others inc. Battery Megatore, but if you do decide to buy one, it’s worth investing a bit extra in quality. I never buy batteries on price, but by quality - min. 4 year warranty ones at best price. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 17 Author Share Posted March 17 Hi Gareth, I'll probably end up getting the battery changed soon, thanks for the recommendations I'll give those a look. Would halfords be a good bet? Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 17 Share Posted March 17 Hello Hanees, ’Halfords as good bet’ - Am I allowed to say no, unless you disrespect your wallet? Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 17 Author Share Posted March 17 Never mind lol, how about euro car parts? Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 17 Share Posted March 17 Blinking heck Hanees, - I conclude you really don’t have any respect for your wallet! Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
hanees97 Posted March 17 Author Share Posted March 17 Where would you recommend I get the battery from? Quote Link to comment Share on other sites More sharing options...
WELSHVIKING Posted March 18 Share Posted March 18 Not an Audi owner (my son is) but it definitely seems like your battery is on the way out. I had a 2004 Jaguar S-type which threw out lots of error codes one morning and that was just a failing battery. I always buy my batteries from these guys (see below), they are usually one of the cheapest and most of the time get next day delivery. Regards Colin https://www.tayna.co.uk/ Quote Link to comment Share on other sites More sharing options...
Magnet Posted March 18 Share Posted March 18 See post of 16 hours ago Hanees. Come on catch up! Only joking. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.