Two varieties of oil filter flanges exist on the TDI mtor. Early TDI models have both a stock oil pressure sender and a blank plug. Many newer TDI oil filter flanges have only a stock oil pressure sender. All senders & plugs have M10x1 threads. Sender installation information differs between the two known oil filter flanges.

Early TDI Oil Filter Flanges
Ealry TDI oil filter flanges are equipped with a blank plug with M10x1 theads. Plug #15 is an excellent location to measure oil pressure. VDO's 80PSI Oil Pressure Sender, part # 360-001 will take the place of plug #15.

If measuring oil temperature, you will need to use an oil drain plug sender. VDO's 300°F Oil Temp Sender, part # 323-055 will take the place of the oil drain plug and accurately measure oil temperature.

Late TDI Oil Filter Flanges
Late TDI Oil Filter Flanges do not have the empty plug. In order to measure oil pressure, you will need to use an Oil Pressure Relocation Kit. Our kit, part # 42-004, will make it possible to install the stock pressure sender and VDO's 80PSI Oil Pressure Sender, part # 360-001 in one location. The kit will take the place of sender #1 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.

If measuring oil temperature, you will need to use an oil drain plug sender. VDO's 300°F Oil Temp Sender, part # 323-055 will take the place of the oil drain plug and accurately measure oil temperature.

Please Note:
Unlike the 1.8t and 2.0 housings, the blank plug in the early TDI oil filter flange does not offer enough depth to house VDO's 300°F Oil Temp Sender, part # 323-423. Those customers who wish to install an oil temperature sender in the blank plug do have an option. VW offers a small OEM temperature sending unit which will fit in the port without issue and work perfect with VDO's oil temperature gauges. However, this part is more expensive than the options we offer. VW part # 049-919-563-A sells for $30-$40 at most VW parts suppliers.

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.