1B Engine (same as MB ur quattro)

steveb · 22-04-09, 09:21 PM

Does anyone know what the oil pressure should be hot and cold, ie at idle & reving at say 3,000rpm (max & min) ?

BW2309 · 22-04-09, 09:30 PM

Oil pressure min with hot engine at 2000rpm is 1.6bar. That's min tho, a good engine should be giving around 3bar lowest at 2000, upto 4+ higher up. Unless totally knackered, the oil pressure at cold start will be off the guage, over 5bar. This is due to the thickness of the oil when cold. At idle when warm you should have around 1.5bar - 2bar if the engines in good nick. If oil temp over 130degrees, like after a run, it may drop to just over 1.2 ish.

steveb · 22-04-09, 09:37 PM

Cold i have 4 bar at idle and over 5.5 reving

Hot , fan cutting in 1.3 at idle 3 reving

The problem is it is alarming for high oil pressure, i have tried new switches, even disconnecting them all dosen't stop the alarm (or connecting them to earth) The pressure relief valve is free as well, new oil and filter

BW2309 · 22-04-09, 09:47 PM

Do you have access to a spare dash pod you could try in it? The circuit inside can fail causing this fault. If you've not got one, don't go buy one. I can find the wiring diagrams for you so you can test the whole system to be certain before you spend any money!

steveb · 22-04-09, 10:04 PM

Brother has another 1B quattro will have get him to "borrow it back from his soon to be x wife

BW2309 · 22-04-09, 10:06 PM

Give it a try mate. Its quick n easy. If it still happens with new dash in by all means PM me, I'd be happy to help and supply information/wiring diagrams.

22-04-09, 09:37 PM	#3
steveb Senior Member Classic Audi Club Member Join Date: Jul 2008 Location: West Berkshire Posts: 1,155	Cold i have 4 bar at idle and over 5.5 reving Hot , fan cutting in 1.3 at idle 3 reving The problem is it is alarming for high oil pressure, i have tried new switches, even disconnecting them all dosen't stop the alarm (or connecting them to earth) The pressure relief valve is free as well, new oil and filter __________________ [FONT] '76 Leyland Princess 2200 HLS '79 Scirocco storm '84 WR '89 coupe quattro '01 A2 1.4 TDI SE '14 A3 1.4 TFSI COD [/color][/size][/font]

22-04-09, 10:04 PM	#5
steveb Senior Member Classic Audi Club Member Join Date: Jul 2008 Location: West Berkshire Posts: 1,155	Brother has another 1B quattro will have get him to "borrow it back from his soon to be x wife __________________ [FONT] '76 Leyland Princess 2200 HLS '79 Scirocco storm '84 WR '89 coupe quattro '01 A2 1.4 TDI SE '14 A3 1.4 TFSI COD [/color][/size][/font]

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22-04-09, 09:30 PM	#2
BW2309 Banned Join Date: Sep 2008 Location: Derby Posts: 1,245	Oil pressure min with hot engine at 2000rpm is 1.6bar. That's min tho, a good engine should be giving around 3bar lowest at 2000, upto 4+ higher up. Unless totally knackered, the oil pressure at cold start will be off the guage, over 5bar. This is due to the thickness of the oil when cold. At idle when warm you should have around 1.5bar - 2bar if the engines in good nick. If oil temp over 130degrees, like after a run, it may drop to just over 1.2 ish.

22-04-09, 09:47 PM	#4
BW2309 Banned Join Date: Sep 2008 Location: Derby Posts: 1,245	Do you have access to a spare dash pod you could try in it? The circuit inside can fail causing this fault. If you've not got one, don't go buy one. I can find the wiring diagrams for you so you can test the whole system to be certain before you spend any money!

22-04-09, 10:06 PM	#6
BW2309 Banned Join Date: Sep 2008 Location: Derby Posts: 1,245	Give it a try mate. Its quick n easy. If it still happens with new dash in by all means PM me, I'd be happy to help and supply information/wiring diagrams.