Bosch Glow Plug Relay for Mk4 Late ALH, BEW, and B5.5 BHW

What It Is
A genuine Bosch glow plug relay (part number 0281003089) for late Mk4 ALH, BEW, and B5.5 BHW Passat engines.

Symptoms This Relay Can Solve

• A constant glow plug light
• Trouble starting regardless of outside temperature
• Starting issues that persist even after glow plugs and harness have already been inspected or replaced

If you've already ruled out the glow plugs and harness themselves, this relay may be the actual cause.

Fitment

• 2002-2003 Mk4 Golf, Jetta, and New Beetle TDI, ALH engine
• 2004-2006 Mk4 Golf, Jetta Wagon, and New Beetle TDI, BEW engine
• 2004-2005.5 Mk4 Jetta TDI, BEW engine
• 2004-2005 B5.5 Passat, BHW engine

Common Questions

I already replaced my glow plugs and harness, but the light is still on. What now?
This relay is a common next step, since a persistent glow plug light or starting trouble can point to a failed relay rather than the plugs themselves.

Is this a genuine Bosch part?
Yes, part number 0281003089.

Does this fit both ALH and BEW engines?
Yes, along with the B5.5 Passat BHW engine.