Rafe Dent · May 27, 2011

Found a small (6-7mm?) neat round hole on right hand vertical side of airbox. Sort of in centre of where air filter sits (internally). It's empty and 'fluttering' on tick-over. Can't be right surely? Any thoughts? Thanks, R
PS FL1 TD4, 2004, 92K km.

2.0_hippo · May 27, 2011

Sounds like previous owner has fitted a synergy 2
The hole was probably for the air sensor on the synergy

angeloc · May 27, 2011

2.0_hippo said:
Sounds like previous owner has fitted a synergy 2
The hole was probably for the air sensor on the synergy

Air sensor? What air sensor on synergy 2?

Rafe Dent · May 27, 2011

so basicallly, it's not meant to be there, OK will blank it off.

Chaser · May 27, 2011

The hole in the end of the air filter housing was used on early Td4s to secure a clip that held a heater hose to the end of the housing.

Rafe Dent · May 27, 2011

oh, OK; but surely it's meant to be blanked off or something?

Chaser · May 27, 2011

don't seem to be, they're all the same from what I find.

2.0_hippo · May 27, 2011

angeloc said:
Air sensor? What air sensor on synergy 2?

on my synergy 2 there is a seperate air temp sensor that goes into the air intake

i think this was later eliminated on later synergys

angeloc · May 27, 2011

2.0_hippo said:
on my synergy 2 there is a seperate air temp sensor that goes into the air intake

i think this was later eliminated on later synergys

Right mine has just the rail and the MAF plugs

2.0_hippo · May 27, 2011

you have the newer one then

arent they just great bits of kit

Rafe Dent

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