Work sequence

WARNING: This page is about a different car, the 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, 2004 Volkswagen Jetta, and 2004 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Remove engine cover.

Fig 1: Identifying Connector Strip And Glow Plugs

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect central connector for unit injectors - 1 -.
Pull connector strip - 2 - off glow plugs.
Remove all glow plugs - 3 - using jointed wrench 3220.

Fig 2: Identifying V.A.G 1381/12 And V.A.G 1763

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Screw in adapter V.A.G 1381/12 in place of glow plugs.
Check compression using compression tester V.A.G 1763.

NOTE:

Using compression tester. Refer to Tester operating instructions.

Operate starter until tester shows no further pressure increase.

Compression pressures

New: 25 to 31 bar
Wear limit: 19 bar
Permissible difference between all cylinders: 5 bar

Install glow plugs with jointed wrench 3220. Tightening torque: 15 Nm
Read fault memory. Refer to Engine control module fault memory, reading and erasing .

NOTE:

Disconnecting the central connector for unit injectors causes faults to be stored. Therefore read and erase fault memory.