Ceramic Glow Plugs

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

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 Conditions

Engine is cold
Ignition is switched off

Removing

WARNING:

The ceramic glow plugs are very sensitive to impacts and bending. Visual Characteristics of Ceramic Glow Plugs .
For this reason, do not use sheathed element glow plugs which have dropped (even from a height of approximately 2 cm) under any circumstances, even if no visible damage can be detected.
Installation instructions must be performed in sequence, otherwise there is a danger the plug breaks and will cause damage to the engine.

NOTE:

When removing and installing, do not bend the ceramic glow plugs. Remove components which hinder installation.

-- 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.

-- Remove ceramic sheathed element glow plugs using flex wrench 3220.

Installing

Installation is performed in reverse order. When doing this note the following:

-- Cylinder head bore and thread must be completely cleaned of deposits before installing.

NOTE:

Never oil or grease thread of bore in cylinder head and ceramic sheathed element glow plugs.

-- Screw ceramic sheathed element glow plugs into cylinder head by hand using flex wrench 3220.

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

WARNING:

After installing and before first engine start with a cold engine, always perform a resistance test at all ceramic sheathed element glow plugs.
If the malfunctioning ceramic sheathed element glow plug is broken, remove all broken pieces from engine, otherwise they can cause damage to engine.

Specified value: max. 1 Ω

-- If specified value is exceeded, replace malfunctioning ceramic sheathed element glow plug.