Oil light flashes and buzzer sounds intermittently - Page 3

AdrianH · 09-02-22, 02:08 PM

Thanks for the pointer. I'm going for a drive / pulling the codes this afternoon so we'll see what transpires. Presumably if it does turn out to be the knock sensor Pete can supply the bolt too.

AdrianH · 10-02-22, 03:00 PM

Right, it's showing 2322, air inlet temperature sender. Let's have a look at that. Pretty sure they're NLA

Tun · 10-02-22, 03:31 PM

Quote:

Originally Posted by AdrianH

Right, it's showing 2322, air inlet temperature sender. Let's have a look at that. Pretty sure they're NLA

The wires to sensor are notoriously dodgy, I soldered mine in place some years ago.

AdrianH · 10-02-22, 04:18 PM

The connections look fine ie it's firmly attached to the harness and it *looks* fine internally. Phil's instructions for checking the resistance are a bit hazy –*I don't want to break it off just to check that the resistance is in range, and presume you can't measure it in situ?

Pete Reeve says the senders haven't been avaiable for years so unless there's some other fault in the wiring I could be of the road for want of a little sender.

mikes2 · 10-02-22, 04:19 PM

same for me. I crimped some miniature spade terminals on to the wires which worked for several years with no issues

They possibly got disturbed when the front end was apart.

AdrianH · 10-02-22, 05:38 PM

Mine is pretty well secured to the harness. Is this part –*035 905 379 B –*the same as the one fitted to the RR?

mikes2 · 10-02-22, 08:43 PM

That's not the correct part for the MB.

MB uses 034 905 379 B which is used on all 20v turbo engines as well as 100/200 MC, 1B and 2B 10v and the V8.

Hasn't been available for a while now

AdrianH · 10-02-22, 10:23 PM

Will 035 905 379 C do the job?

(In that last post I meant to type '034 905 379B' but had too many pics up on the screen...)

vagdream · 11-02-22, 04:54 PM

When i last checked, i think they were the same thermistor (035905379C and 034905379B).
I checked mine by removing the unit from the intercooler and metering across the actual component in it's holder. This showed no problem, the reading was around 500 ohms as i recall.

AdrianH · 11-02-22, 05:00 PM

Was this with it still connected to the loom, and just measuing across the tiny 'bulb' sensor itself?

10-02-22, 04:19 PM	#25
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	same for me. I crimped some miniature spade terminals on to the wires which worked for several years with no issues They possibly got disturbed when the front end was apart. __________________ 1991 90 quattro 20v sport 1991 90 quattro

10-02-22, 08:43 PM	#27
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	That's not the correct part for the MB. MB uses 034 905 379 B which is used on all 20v turbo engines as well as 100/200 MC, 1B and 2B 10v and the V8. Hasn't been available for a while now __________________ 1991 90 quattro 20v sport 1991 90 quattro

09-02-22, 02:08 PM	#21
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	Thanks for the pointer. I'm going for a drive / pulling the codes this afternoon so we'll see what transpires. Presumably if it does turn out to be the knock sensor Pete can supply the bolt too.

10-02-22, 03:00 PM	#22
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	Right, it's showing 2322, air inlet temperature sender. Let's have a look at that. Pretty sure they're NLA

10-02-22, 04:18 PM	#24
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	The connections look fine ie it's firmly attached to the harness and it looks fine internally. Phil's instructions for checking the resistance are a bit hazy –*I don't want to break it off just to check that the resistance is in range, and presume you can't measure it in situ? Pete Reeve says the senders haven't been avaiable for years so unless there's some other fault in the wiring I could be of the road for want of a little sender.

10-02-22, 05:38 PM	#26
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	Mine is pretty well secured to the harness. Is this part –035 905 379 B –the same as the one fitted to the RR?

10-02-22, 10:23 PM	#28
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	Will 035 905 379 C do the job? (In that last post I meant to type '034 905 379B' but had too many pics up on the screen...)

11-02-22, 04:54 PM	#29
vagdream Grown up member Join Date: Jul 2015 Location: Llandudno Junction Posts: 166	When i last checked, i think they were the same thermistor (035905379C and 034905379B). I checked mine by removing the unit from the intercooler and metering across the actual component in it's holder. This showed no problem, the reading was around 500 ohms as i recall.

11-02-22, 05:00 PM	#30
AdrianH Grown up member Join Date: Jan 2014 Posts: 218	Was this with it still connected to the loom, and just measuing across the tiny 'bulb' sensor itself?