That poor train keeps going through the buffers :vb-biggrin:

I'd go for an air lock aswell🤔 How was the system bled? There are way to many things on a lot of engines with their own coolant pipes and air locks are a nightmare sometimes to get rid of 🤬

Others will know better than I, but an airlock is a possibility as is a faulty heater control valve.

Ah great, I will check the cable first and give the angle drive a bit of WD-40 for good measure👌🏻

Yes old school lol. Might be a right angle drive behind the Speedo , they can get a bit dry giving same fault.

This says to me the compressor can't get any pressure into the system. Not tried it but assume there's a way to disconnect the output connection and see if you can stop the air with you thumb over the hole. Assuming you don't have a pressure...

It is known to fix some things on l322 so it's always worth a go.

Have you tried the battery disconnect for half hour reset procedure. And shorting the terminals together (NOT BATTERY TERMINALS) to drain residual power from the ECU's?

^^^^ What he said. I believe it's underneath it.

Big black box on top of right side inner wing.

A good number of us have already fitted the larger battery so what issues would you expect?

These cars are very power hungry, the right battery is the biggest that will fit in the hole

The permanent live on 7 pin systems is in the second 7 pin connector denoted 7S.

Are you sure that the MAP sensor should have a 12 volt supply? If not and you applied 12 volts the sensor is probably toast.

@Varks74 Just a thought. Have you tried swapping the fibers over on the display in case they have accidentally been switched round?

It was easy for me cos I was using a 4 post lift but unless you're very very skinny I doubt you'd get under it. Maybe jacking it up and using axle stands is an option.

If the car is a P38, all the S connections are available in the left rear quarter behind the trim and 7 core cable is fine. There is a grommet at the base of the well below the connectors that can be used to route the cable. I can give you all...

So does 7 pin s socket. I have fitted both sockets on the P38 and the last L322 I had but must admit I purchased the proper loom so it just plug and play for this one (2008 L322) but reckon I could have worked it out to fit both if had to. Don't...

With my diag tool you enter the measured values and the car works out the rest so the chart is just for reference. Unless you fiddle the measured values to compensate of course.

Can't check at the moment cos my height chart is in the garage and it's dark outside lol. But from memory you need to be looking at 495 mm wheel centre to bottom of arch front and 485 mm wheel centre to arch rear , wheel size doesn't matter.

Have you checked units in rear left, TV unit died on mine and stopped everything till I did the loop bypass replaced TV unit and all good.

So how about showing it? (new thread needed) We all like a change of thinking. Sometimes ;). Oh and welcome:). J

Mine would only get up big chimneys these days

Think he means small son up chimney to clean it !

Give it time.

Got a point there.

+1 thermostat.

The problem is not the sensor,as I said in a PM it's likely to be the thermostat stuck open.

What year the early ones were very specific about diag and somewhat limited on most systems 🤔