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Dumb question #1 in a series of n

In message <UPMAIL13.199709062036590747@classic.msn.com> "Ian J Haseltine" writes:

> There are two identical units on the front lh side of my engine, they look
> like they are temp sensors. 1 is just forward of #1 plug and the other is on
> top of the coolant connection between #1 and #2 plugs. There are two cables,
> one blue and the other brown or white or grey (its difficult to tell). The
> dumb question is which wire goes to which sensor? I cant remember although I
> think that the blue one was fitted to the upper unit. Could you
> confirm/advise?

Welcome to the whacky world of the MB engine.

And you missed one!  There are _three_, not two!

The MB engine has three single-pole water temperature senders - all of
them part # 049 919 501.

The blue wire goes to G62 - which is mounted forward of #1 plug under
the hydraulic pump bracket.  It's connected to the ECU.

The green/brown (I know) is the idle stabiliser temperature sensor.

The blue/brown wire (back of cylinder head) is the temperature display.

 Phil Payne
 Phone: +44 385302803  Fax: +44 1536723021  CIS: 100012,1660