Hi folks, I recently had an engine management light on the dash, and following a diagnostics scan it threw up cylinder 3 glow plug fault. I know cylinder 3 glow plug usually has a pressure sensor on it, so I went ahead and purchased one.

When I removed the top connector, I noticed the existing faulty glow plug 3 was the regular one without the pressure sensor. The top connector also doesn't fit the new glow plug I purchased.

My car is a 2014 Skoda Octavia VRS TDI DSG. Is it normal for it to have 4 regular glow plugs without a sensor on any of them? TIA.

Looks not normal, Catalogue shows 3 this and 1 that glow plugs for all TDI:

It would help to know what the actual engine code is. My 2012 Octavia II 2.0 TDI has 4 indetical glow plugs.

1 hour ago, Liger1956 said:

My 2012 Octavia II 2.0 TDI has 4 indetical glow plugs.

3 hours ago, NJD91 said:

My car is a 2014 Skoda Octavia VRS TDI DSG.

@NJD91 is it a late Octavia 2 or an early Octavia 3?

It's an early Octavia 3 with the CUNA engine - sorry, I've posted this thread in the Mk3 forum, I thought that was clearer.

Edited 29 May, 20251 yr by NJD91

2 hours ago, NJD91 said:

It's an early Octavia 3 with the CUNA engine - sorry, I've posted this thread in the Mk3 forum, I thought that was clearer.

Strange that all plugs for wiring harness are similar...does your car matches one of criteria for Pos.6 PR code? 7MM or 7MJ

Edited 29 May, 20251 yr by indars
Typo error

Apologies, I have checked my engine code and it's actually the CUPA engine. Emission standard is Euro 5.

Following further research it seems the CUPA engines don't have the pressure sensor glow plug whereas the CUNA engines do. Case closed! Thanks everyone for your help.

5 minutes ago, NJD91 said:

Apologies, I have checked my engine code and it's actually the CUPA engine. Emission standard is Euro 5.

Glad we sorted it.

That's why Pos.5 ('simple' glow plugs) in catalogue doesn't indicate quantity.

Because "X" can be "3" or "4" (all similar, 'simple' plugs).

Edited 30 May, 20251 yr by indars
typo error