Three varieties of oil filter flanges exist on the VR6 motor. Mk3 VR6 models have 3 senders - a stock temperature sender and 2 stock pressure senders. Early mk4 VR6 models have both a stock oil pressure sender and a blank plug. Many newer VR6 oil filter flanges have only a stock oil pressure sender. All stock sending units have M10x1 threads. Sender installation information differs greatly between the three known VR6 oil filter flanges.

Mk3 VR6 Oil Filter Flange
The mk3 VR6 oil filter flange has 3 available ports, all filled with oem sending units. The front two sending units are pressure and the rear sending unit is temperature. When installing an oil temperature gauge, you will need an Oil Pressure Relocation Kit, part # 42-004. Use the relocation kit to install both stock pressure senders in one port. The free port will then house VDO's 300°F Oil Temp Sender, part # 323-423. When measuring oil pressure only, the same guidelines apply. Use our relocation kit to install the stock sending unit and VDO's 150psi M10x1 Oil Pressure Sender, part # 360-023 in one port.

When installing both VDO oil temperature and pressure senders the rules change slightly. You will need a M10x1 Male T Adaptor and our relocation kit to remotely install VDO's 150psi M10x1 Oil Pressure Sender, part # 360-023 and the 2 stock pressure senders in one port. This creates a spare port to install VDO's 300°F Oil Temp Sender, part # 323-423.

Early mk4 VR6 Oil Filter Flanges
An early VR6 oil filter flange will reveal a blank plug located aside the stock oil pressure sender, #9 as shown below. This blank plug is an excellent location to measure oil temperature. VDO's 300°F Oil Temp Sender, part # 323-423 will take the place of the blank plug and accurately measure oil temperature. If measuring oil pressure but not temperature, VDO's 150PSI M10x1 Oil Pressure Sender, part # 360-023 will also take the place of the blank plug.

If measuring oil temperature and pressure, you will need an Oil Pressure Relocation Kit, part # 42-004. Our oil pressure relocation kits have been designed to allow our customers to install VDO's 150PSI M10x1 Oil Pressure Sender, part # 360-023, and the stock sender remotely. The oil pressure relocation kit will take the place of the stock oil pressure sender, #9 as shown below. The stock sender will now be located aside the VDO sender 12" away from the oil filter flange where sufficient room exists.

Late mk4 VR6 Oil Filter Flanges
Late VR6 oil filter flanges do not have the empty plug. In order to measure oil temperature you must use an oil drain plug sending unit. VDO's 300°F Oil Temp Sender, part # 323-055 will take the place of the oil drain plug and accurately measure oil temperature.

Our Oil Pressure Relocation Kit, part # 42-004, will make it possible to install the stock pressure sender and VDO's 150PSI M10x1 Oil Pressure Sender, part # 360-023 in one location. The kit will take the place of sender #9 in the diagram below. The stock sender will now be located aside the VDO sender 12" away from the oil filter flange where sufficient room exists.

80psi or 150psi?
The VR6 motor is known to produce oil pressure in excess of 70psi. For this reason, the 150psi oil pressure gauge and sender should always be used on the VR6 motor.

What about the 24v VR6?
The 24v VR6 uses the later oil filter flange. No blank plug is available for measuring oil temperature. Follow the instructions above for late VR6 oil filter flanges to install oil senders on a 24v VR6.

Tools Required:
24mm Deep Socket
5mm Hex Wrench

When installing oil sending units it is important to maintain a ground between the sending unit and the engine block. Ground is normally maintained in the threads of the sending unit. Use only 1 wrap of teflon tape on sender threads to assure no leaks or loss of ground.