VDO Oil Temp Gauge Reading High!
Posted
#979377
(In Topic #115978)
Settling In
VDO Oil Temp Gauge Reading High!
Since the work the VDO oil temp gauge now reads over 170degC as soon as you turn the car on. The VDO Oil pressure gauge still works fine (as does the VDO Battery Voltage gauge). The MFA still reads nothing ( eg. - -.–) until the car has been running for about 15minutes, when it reads a seemingly reasonable 90degC!!! The temp. also changes throughout the drive, so it seems that the oil temp sender is ok, but has been connected to the wrong gauge? How do I rectify this? I?d rather use the VDO centre console gauge as it is easy to read on the fly and looks totally stupid with a reading off the scale all of the time!!! But could both gauges be used? I've moved away from the area where the garage is, so I can't take it back! I?m rubbish with electric stuff, aside from the most rudimentary of understanding! :dontknow:
Any help would be greatly appreciated. I?m getting married this Friday (18/09/09) 8O , my car is being used to transport me + groomsmen to the church to go with the missus? 73? Karmann Beetle and the bridesmaids who?ll be in a ?69 bay camper!!! I?d really like the car to be fully working by then!… because otherwise the car is spot-on!!! Thanks in advance!
Posted
MOTY 2013
as for the strange readings this could be as you say due to the wrong sensor being used for the mfa gauge, so if you spot the green/black wire swap this for the loose VDO gauge wire and see where that gets you
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
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My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Settling In
You were correct. The wires for oil pressure and oil temp where put back the wrong way round by the garage!!!!
Posted
Settling In
I have the high temp reading on the VDO gauge (around 110-120 when the housing temp is showing as 75-80 using my multimeter probe), no temp reading on the MFA at all. Its the original temp sender on the filter housing. If you feed the water temp signal into the gauge it also reads over 110 at water temp of 80. This would indicate to me that my gauge is reading high. Is there a fix for this other than get another gauge?
Alongside this fault I had a low pressure warning light flashing at idle (well I did after I re-connected the warning lights connector on the transmitter the previous owner kindly left off) and the gauge indicating low but I've diagnosed that down to the pressure sender as when I put an original blue switch in the low pressure light stays off and when I hooked up another gauge/ transmitter its showing a decent reading of 20 psi at idle not the 0-0.5 bar the cars gauge is showing. What pressure sender do I need that will run the gauge and the light ie twin post? If the gauge consistently runs low with a new transmitter I assume I'll be needing a new gauge as well?
Will this sender work OK? Has anyone seen the same quality or better cheaper anywhere else?
http://www.ebay.co.uk/itm/Oil-Pressure-5-bar-Sender-Unit-replaces-VDO-unit-Two-Post-warning-light-model-/370632380564?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item564b695094
Posted
MOTY 2013
the sensor you need for the oil temp and oil pressure depends on which vdo gauges you have what rating are they both?
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Settling In
The gauges are 0-5 bar oil pressure 60-170 degree oil temp and the traditional voltmeter. Really I want the 50-150 temp gauge I think.
Posted
MOTY 2013
the 0-170 gauge might need an audi blue sender? have you tried running the vdo direct to the mfa sender on its own?
for the 0-5 bar gauge the link above will work fine, maybe check the numbers on the sender you have perhaps its a 0-10bar sender
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Settling In
I shall buy that pressure sender to sort out the low pressure warning and dodgy gauge reading and will probably try and source a 50-150 temp gauge rather than add an audi temp sender.
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