Esp light on after flat battery.

**clarkyWRX** · 04-03-2016,09:07 PM

The battery on my A3 2.0 Fsi Sport went flat due to it not being used for a while. After getting it started today, the Esp light stayed on. I've driven it and it stayed on. I've checked the fault codes and there was three from memory: Brake pressure sensor, steering angle and lateral accelerometer iirc.

How do I get the Esp light to go off? It was fine before the battery went flat.

**clarkyWRX** · 05-03-2016,05:51 PM

Anyone?

I've had the battery off today to reset everything. Drove it for 10-15 minutes and the Esp light is still on.

If it can only be reset with Vag-com or VCDS, what version can I buy that will definitely sort it?

**micheal balbrig** · 05-03-2016,06:17 PM

When you checked the codes,did you clear them, or are they refusing to clear.
If they cleared, what codes cam back on next test?
Your answer may help some of the experts to take you further
A query to Gendan re. vcds equipment will get you informed of best option,probably approx. 300 pounds.

**clarkyWRX** · 05-03-2016,06:24 PM

Tried clearing the codes with a Vgate scan tool but the ESP light remains on so I'm guessing it's not clearing.

I don't want to pay £300 for a tool just to try and clear this problem. Do any of the VCDS/Vag-com tools on eBay allow the ESP light to be reset?

**grant19841** · 05-03-2016,08:59 PM

Normally if the battery in flat the light comes on and stays on, but you change the battery and once you take it around the block it goes out within seconds.

A vcds won't solve the problem because it may still reoccur, there must be a fault somewhere that needs looking into.

Do another scan and post the codes on here, but from what you say you had "from memory" something seems to be at fault.

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**clarkyWRX** · 05-03-2016,09:07 PM

But I've searched on here and read that it's common when the battery goes flat for these codes to come up and the ESP light to stay on.

Apparently the ecu loses the basic settings and needs recoding?

**grant19841** · 05-03-2016,09:10 PM

You could be right if u have done your research,
I'm only talking on my own personal experiences.

It may be worth posting the actual codes on here anyhow so ppl can relate to them more to help you out.

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**clarkyWRX** · 05-03-2016,09:16 PM

The codes were:

00810 Sensor 1/2 for brake pressure. No or incorrect basic

00778 Steering Angle Sensor (G85)
No or incorrect basic

01423 Lateral Acceleration Sensor (G200)
No or incorrect basic

None of this was present until the battery went flat and it was started from a jump pack.

**grant19841** · 05-03-2016,09:28 PM

Don't mean to sound patronising but, how did You connect the jumper?

Positive to negative or negative to positive?

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