Aston Martin DB7, DB9, DBS, Vantage V8, Vanquish, and Classic models

Intermittent issue

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Old Dec 7, 2023 | 06:22 AM
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Intermittent issue


PLEASE HELP!! I am having intermittent issues with my 2019 Aston Martin Vantage. Whilst driving and all of a sudden, randomly, the power steering fault comes on, all types of error lights come on, eDiff Unavailable comes on and parking brake malfunction comes on. Car loses power and I’m unable to drive it.

I thought it’s because of the battery so I had my brother change that but this morning it happened again on my way to work, on the motorway and I almost had a major accident.

I don’t want to take it to Aston for endless inspections and £1,000,000 bill so I was wondering if anyone has any ideas what it may be since it’s intermittent?

I really appreciate any advice. Picture and video attached are from this morning. Thank you so much!!
 
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Old Dec 7, 2023 | 07:07 AM
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Usually, the warnings you have are related to a low battery. Check the new battery. It's possible it is not completely charged. Another resource is to ask your question in the Aston Martin Vantage 2018+ Owners Group on Facebook. You might get more replies there.
 

Last edited by cb804; Dec 7, 2023 at 07:12 AM.
Old Dec 7, 2023 | 08:53 AM
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These new-gen cars seem to be EXTREMELY sensitive to voltage. The eDiff especially. It's possible that the replacement battery was low or just not equivalent to OE.
 
Old Dec 7, 2023 | 11:11 AM
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Originally Posted by cb804
Usually, the warnings you have are related to a low battery. Check the new battery. It's possible it is not completely charged. Another resource is to ask your question in the Aston Martin Vantage 2018+ Owners Group on Facebook. You might get more replies there.
thank you! I assumed would be the battery since they are intermittent and different errors come every time so they can’t be true errors. I will get the battery charged and hopefully solved the issue. I’m just hoping it’s not a bad wire connection somewhere which would take ages to diagnose!
 
Old Dec 7, 2023 | 11:14 AM
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Originally Posted by volvodrummer
These new-gen cars seem to be EXTREMELY sensitive to voltage. The eDiff especially. It's possible that the replacement battery was low or just not equivalent to OE.
Correct about the voltage since I had a immobiliser and tracker fitted which measure battery voltage and it kept triggering the alarm as the old battery voltage kept dropping at random hours so I assume this is what’s causing the loss in power whilst driving. Just difficult to repair since I literally put a brand new battery in which is compatible with the car and have been driving it since, so should have charged itself. Thank you!!
 
Old Dec 7, 2023 | 12:10 PM
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I would try two things... disconnect the battery for 30 minutes v or more to allow modules to reset...

Also in many cars, I've touched the positive and negative cables together for several minutes to drain any residual power from modules... haven't had the need to do it with my Aston, but did it with a few of my BMWsc to reset things
 
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