Metal Glow Plugs

Special tools and workshop equipment required 

• SW 10 hex ball socket 3220
• Torque wrench V.A.G 1331
• Hand multimeter V.A.G 1526 C or Multimeter V.A.G 1526 A
• Connector test set V.A.G 1594 C

Test Prerequisites 

• Fuse strip for the glow plugs in the fuse panel/battery OK
• Battery voltage at least 11.5 V
• Ignition switched off

Checking 

-- Remove engine cover.

One Piece Engine Cover 

Fig 1: Removing Engine Cover

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Pull the one piece front engine cover -arrows A- upward with a quick jerk and then pull the lower mount -arrow B- forward.

Two Piece Engine Cover 

Fig 2: Removing Engine Covers

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

On the two piece engine cover, first pull the outer cover upward with a quick jerk -arrows in the upper illustration-, then pull the inner engine cover upward with a quick jerk -arrows in lower illustration-.

-- Disconnect glow plug connectors from glow plugs.

-- Connect the lead of the voltage tester V.A.G 1527 B to battery positive (+) with the adapter clips from the connector test set V.A.G 1594 C.

Fig 3: Identifying Diode Test Lamp

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Attach test lead of voltage tester V.A.G 1527 B to each glow plug in succession.

• LED lights up: Glow plug OK.
• LED does not light up: Replace glow plug.

Removing 

-- Remove the glow plugs using flex wrench 3220.

Installing 

The rest of the assembly is basically a reverse of the disassembling sequence.

-- Install the glow plugs with the hinged socket 3220 and tighten them to 15 Nm.