Glow plugs, checking: Notes

Special tools, testers and auxiliary items required 

Fig 1: Special Tool - Jointed Wrench 3220

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Jointed wrench 3220

Fig 2: Identifying V.A.G 1594 A Adapter Set

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Adapter set V.A.G 1594 A
• Diode test lamp V.A.G 1527