Headlights staying on

The faults will need clearing with diag

Will a universal diagnostic tool do

In a word no the p38 is not obd compliant and only dedicated diag will work, the best is Nanocom by blackbox solutions there are a couple more but not as good.

+1

While your at it check for damp carpets by the BECM,below the front of the drivers seat.and if you remove the base trim check the plugs for damp and corrosion.

brianp38dse said:

If its new battery time do not go for anything other than an MF31 120ah 1000cca.

Click to expand...

An alternator setpoint of 13.8V will probably kill that.

While your at it chevk for damp carpets by the BECM,below the front of the drivers seat

Grrrrrr said:

An alternator setpoint of 13.8V will probably kill that.

Click to expand...

+1^

Yip have a damp carpet and checked connections all seemed on only the first grey connector was damp so used hair dryer to dry

Well you got to cure that leak once you got the lights sorted Is it wet right the way through to the centre console at the front

No bout half way across I think maybe drain hole clogged or leak elsewhere

This is the regulator to fit that ups the voltage to 14.7v which is better for newer battery design
https://www.ebay.co.uk/itm/12V-Alte...221561?hash=item2843ebd7f9:g:JqAAAOSwMuZbyfHf

Thanx just want to say have reconnected battery and no lights on for about 10 mins then they came on again???????

You may need to take the becm out whip the top off and check for damp and let it dry in the airing cupboard.

Biglad2222 said:

No bout half way across I think maybe drain hole clogged or leak elsewhere

Click to expand...

Coolant or water? The aircon drains sometimes pop off under the centre console. Then again, might be rain leaking in. Coolant will be the o-rings on the heater matrix pipes.

Just water think its thru front up top

Biglad2222 said:

Just water think its thru front up top

Click to expand...

Windscreen seals have been known to corrode underneath and cause issues. Replacement screens too.

Yea think its coming in round there somewhere

You will smell it I’ve it’s coolant sweet smell I’ve it is then the work really begins poxy job to fix

No defo water

Biglad2222 said:

No defo water

Click to expand...

Deffo no Anti-freeze in the system you mean? (He said, helpfully).
As long as your expansion bottle is staying solid on a level and not showing any water loss then it is most likely a poor "pollen-filter" sealing or a leak around the screen or the like.