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the only 2pole, 5 bar, M10x1, VDO pressure sender ive found decent info on so far is: "5 bar gauge with a 1.2 bar switch and m10x1 thread. (360081030018c)"
v-lux wrote:Can anyone tell me what BAR/PSI the sender in the filter housing switches at?
There must be a VDO pressure sender that has the correct output for the 2nd pole, meaning i can do away with the original sender and not bother with a T piece etc.
I'm going to be putting the oil temp sender in the other fitting in the filter housing by the way...
otherwise you could just get the same thing for £6 off ebay... Is the one you have Neil actually earthed at one pole and the other sent to the oil pressure sender? I only ask because if the earth one was connected to the BOD the BOD would have been set off if connected to it. Obviously you would have found this out hence the exrta take off point since, could of swore you said the one from VW Heritage for £40 did the both.... Must have miss heard you 
Typically the low/low is set at about 0.25~0.3 bar, depending on vehicle and switch (colour) code.
Typically the high/low is set at about 0.9~1.4 bar, depending on vehicle and switch (colour) code.
ETKA (the VW parts counter software) lists these sensors and their pressures and colour codes for your vehicle:
Low rpm/low pressure sensor - 028 919 081 C (0.3 bar BROWN) - Early original fit?
Low rpm/low pressure sensor - 028 919 081 D (0.25 bar BLUE) - Later replacememt for all .3bar switches
High rpm/low pressure sensor (Petrols) - 068 919 081 A (0.9 bar GREY) - Std. 2.1
High rpm/low pressure sensor (Petrols) - 068 919 081 E (1.8 bar WHITE)
High rpm/low pressure sensor (Diesels) - 068 919 081 A (0.9 bar GREY)- common with petrol sensor
High rpm/low pressure sensor (Diesels) - 068 919 818 (1.4 bar BLACK)
Low rpm/low pressure sensor - 028 919 081 C (0.3 bar BROWN) - Early original fit?
Low rpm/low pressure sensor - 028 919 081 D (0.25 bar BLUE) - Later replacememt for all .3bar switches
High rpm/low pressure sensor (Petrols) - 068 919 081 A (0.9 bar GREY) - Std. 2.1
High rpm/low pressure sensor (Petrols) - 068 919 081 E (1.8 bar WHITE)
High rpm/low pressure sensor (Diesels) - 068 919 081 A (0.9 bar GREY)- common with petrol sensor
High rpm/low pressure sensor (Diesels) - 068 919 818 (1.4 bar BLACK)
Black 1.4 or 1.8 bar white if you can get them are your alternates... so why not start high and drop back if they buzz too often.
Superb info eh?
v-lux wrote:Bugger,
That pressure sender (5bar, 1.2bar warning, VDO sender) is setting off the buzzer above 2k rpm.
Gauge is showing that there's good pressure, DOPS is working ok, has done for ages and behaves if i earth it.
What's going on there then?
I expected the 1.2bar sender less likely to set off the buzzer?
I'm confused....
Ideas?
The Vdo one I bought tells you to earth the second terminal and attach the bod wire to that also. I know it sound odd but I am only telling you what it said.
)v-lux wrote:Anyone got any idea why i'm having trouble with my water temp gauge? (not the one on the dash by the way)
- Its a brand new 120ºC VDO sender.
- I've double and triple checked that i've got the wires going to the correct places.
- Just in case... Ive checked the continuity of the cable running from the sender to the gauge and that's fine, there's no break in it.
- To check the gauge, Ive earthed the sender wire and the gauge goes straight to the highest temp reading, all good there.
- With the sender wire still connected, I've tried adding an additional earth from the sender to the engine block, this also sends the gauge to the highest temp reading.
But still no temperature registering on the gauge (yes i have made sure i got the engine warm
I'm stumped,.....Ideas?
