The MOT doesn’t cover the temp gauge. They check warning lights go on and off as appropriate.

Well i got the parts for this and have only gotten so far with it, but i just wanted to check what the verdict would be in terms of MOT, would i need to get this all sorted and working for it to pass you think? Not sure if they check dash stuff so figured I'd just ask since its only a few months awa...

In that case you will need to study the mech. Diagrams for your year and engine http://www.lushprojects.com/bongopartsmk2/ As a starter! The thermostat is on the front of the engine, you will also obviously need to replace the coolant as it will be lost, the 2l is the easiest to drain and refill, as...

Thanks a lot for the quick reply! :D Ahh ok fair point, it was bought privately so no recourse there really, although the seller was a good guy and I'm still in contact if needed so. If theres one there, maybe it's just faulty potentially? So where would i go looking to check first there is actually...

If you have only just bought it then there is always the question of "Is there a thermostat fitted ?" especially if you say it does move on occasions! Its a quite well known weeze to remove the thermostat to hide overheating problems :-( If it was brought as a commercial deal then take it ...

Hi there, Full on newb with bongos and first post here :) Just recently got a bongo 2.0L myself, and i think i have the same issue, I've seen the gauge move only once in the couple of weeks I've had it. So sounds like hopefully just the same fix needed? I had a look over the diagrams linked, but rea...

Thanks, I really appreciate it!

As your a 2l then whilst you will loose some coolant, provided you top up afterwards then the 2l will self bleed anyway, unlike the diesel or V6. Just have the new sensor ready to go in when you unscrew the old, and you ought not to loose too much, especially if you leave the caps on the de-gassing ...

Thanks for the diagram, it's connected via a single green wire on mine.

Sorry for the repeated newb questions, is this something that I can install without needing to drain the coolant?

Oops did I get them reversed ? Looks like it 18-510 is the single wire sensor for the display and the 18-840C is the two wire for the ECU!

There are two sensors, one drives the display gauge alone and the other drives the ECU. If the display is acting up then obviously its that sensor that needs attention but you might be getting confused as they are in close proximity on the 2l! 18-510 (two wire sensor) is the ECU and 18-840C drives ...

There are two sensors, one drives the display gauge alone and the other drives the ECU. If the display is acting up then obviously its that sensor that needs attention but you might be getting confused as they are in close proximity on the 2l! 18-510 (two wire sensor) is the ECU and 18-840C drives t...

... back off etc. When I had a look around the engine I noticed the temp sender unit appeared to be pretty badly corroded, the flange ended up breaking off with hardly more ...

Slowly but surely on this issue! Also check the fuel gauge,the connection on the fuel sender unit gets corroded ( the earth ); part of our vans problems were that the gauge was reading too high...i.e less in the tank than expected.
Pete

Well i have removed tank sender unit and the tank is clean and there was diesel in there to make sure it wasn't anything to do with the running ...