correct blue temp sensor?

[jurassicwadey]

my m30b35 engine runs rough on first start up until warm, and as per a previous thread, i was advised it might be the blue temp sensor, have looked on line to purchase a new one but I'm a little unsure as I don't know which year my engine is? is that relevant? or is any sensor for the e34 be suffice?

[Brianmoooore]

The same sensor is used across many BMWs and other makes.
Beware of cheap sensors from a land a few thousand miles away. They will be correct at a couple of temperatures, but don't 'track' properly between the two.

[dimebag_from_hell]

Is a rough start up the classic sign of a dud blue temp sensor or could very poor mpg alone be a sign?

thanks

[jurassicwadey]

OK, so drove my 30 to the bodyshop yesterday- seemed a little hesitant at times, would the blue temp sensor be the cause for that as well?

Have ordered a new blue temp sensor, so time will tell!!

[andysheep]

Iv got this problem did you go to the stealers or is there a cheaper option?for the blue temp switch.....
Not from the land off sweet and sour as brian said

[dimebag_from_hell]

How much is it from the stealers?

[andysheep]

I havnt got the balls to check cos i need two,one for my driver and one to replace the one i robbed out the miss's cabby

[jurassicwadey]

well the blue temp sensor didn't work for me- so i have a spare one!

[andysheep]

Come on then pm me the bad news,iv just thought even when i bleed the brakes and top up fluids it still not going to start with the duff one i stuck in the hole for window dressing thats if you want to pass it on?,oh i have a exhast gasket set if your in need ,bmw one part number11 62 1 723 656,no good to me i aint got a big dog m30 engine,mine are m20b20 ×4 and 1 m10,andy
Ps whats your plan now that fix didnt work

[jurassicwadey]

well i disconnected all the connectors in the engine bay, cleaned them all off and plugged them back in- seems to be running better?

but it is booked in with a specialist near me who is going to check it over, check the timing etc etc

will pm you regarding the sensor

[jurassicwadey]

well that embarrassing moment when they the specialist fixes your running problem in 30 seconds!
the fault was the earth! I hadn't noticed that the terminal connection on the battery was loose!
but on the bright side as id driven it there, i let him take the car in and fully inspect it, he found a few little niggles but on the whole seems all good! phew!
can at least drive the car with a bit more confidence now!

[andysheep]

Not nice when things arnt queit right,buggs you in the back off your mind.nice to hear its sorted,