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HELP! I don’t know if my car is a CF2 or CF3.

1.3K views 2 replies 3 participants last post by  Nellytheroc  
#1 ·
Hello fellow alfisti,

my beautiful baby has recently had her clutch master + slave changed. I was told my car was A cf2 engine and the usual rule of thumb is to check if the car is ulez exempt. If it is it’s a CF3, if not, a cf2.

While my car is not ulez exempt I had assumed it was a cf2 for the time.
While changing the clutch master I order a cf2 rhd cylinder from Alfa workshop, when it came to fitting the part, the existing one was about half the length.

after speaking to Alfa workshop, they said it looks likeI have a cf3 car as it was the cf3 cylinder.They assume Alfa Romeo have incorrectly registered my car when it was first manufactured.

TLDR; how to I identify my car as either a CF2 or CF3.
And can someone confirm if that ulez rule of thumb is true?

many thanks.
 
#2 ·
CF3 cars usually have engines that have a plastic rocker cover and 3 catalysts with an electronic throttle.

So we'll assume it has a plastic engine cover (CF1 are metal), next take a look at your Throttle Body, is it operated by a cable (CF2) -

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or electronically (CF3) -

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#3 ·
The exhaust is also a giveaway for determining if you have a CF2 or CF3 (assuming you have a Twinnie). CF2 has a small heat shield on the manifold, a small cat with a separate small silencer and one lambda sensor while the CF3 has a much larger heat shield, pre-cats on the downpipes and an all in one main cat/small silencer with 3 lambdas. 1, 3 and 5 are CF2 and 2 and 4 are CF3
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CF2
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CF3
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CF3 downpipes
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