Hi From South East Cornwall

[zetec29]

Hi,

 

Bought a c8 recently......

2.0 hdi 110bhp sx

Triptronic

Wicked red (excellent condition)

76,000 miles

 

So......

 

Reaches temp then if it goes just above 90 a beep, oil pressure insufficient.

Has passenger airbag fault.....

 

But that is it lovely car thelse, and had gear box rebuild at cost of 1300 quid.

 

Need to fix faults then selling on.

[coastline taxis]

Sounds like an oil change and a diagnostic session is what it needs

[paul.h]

If you do not have access to a cheap diagnostic check, then it may be worthwhile just changing the oil pressure switch located above the oil filter since a new one is only about £10. You may find the existing one is blocked or possibly leaking or maybe the wiring/connector is faulty. I have had cars in the past where low oil pressure has just been a switch fault. if the pressure then still comes back low, then you will need to measure the oil pressure with a guage and then decide where the fault is - could be oil pump/relief valve/bearing wear/blocked oil filter/oil too low viscosity (wrong oil used or possibly diluted with diesel due to an injector problem - check the oil level has not gone up).

 

As for the air bag fault, have a look under the passenger seat and see if the wiring connector is loose but do this with the key out of the ignition for at least 15 minutes and possibly consider disconnecting the battery so there is no risk of the air bag going off.

[zetec29]

Thank you all for your welcomes and comments.

Having it put on diagnostics Saturday, oil pressure switch only has one wire, orange!. Green one not there.

I also have a new water temp sensor but looks a pig when u have big hands.

 

Cheers guys

[paul.h]

I think oil pressure switches only have one wire and the earth side is through the switch body. The Citroen part may be 1131C5, but you would need to check this against your car VIN.

[zetec29]

Had anyone a guide to change coolant sensor? Please

[paul.h]

In the Haynes C5 manual, it says the sensor is in the coolant outlet housing at the gearbox end of the cylinder head. Some sensors screw in and others are held by a clip. You could drain some of the coolant or with a cold engine, undo the expansion tank cap to release any pressure and then just remove the sensor and put the new one straight in whilst trying to minimise coolant loss (plug the hole with a finger or bung). If it is held in by a clip, prise this out and remove the sensor and sealing ring - fit a new seal to the new sensor, push it into the housing and fit the clip.

 

Do you think there is something wrong with the sensor - failures mentioned on here seem to be it quickly goes to a high temperature ?

[zetec29]

No turns out I'm paranoid and seeing things lol

 

Changed everything anyway so up for sale now

 

First and last citroen ha ha