W124 E320 Air Pump or Pulley Required

[jcrossan]

Hi,

I have a '93 E320 Cabriolet that has a "failed" pulley on the emissions air pump. These are parts A 104 140 08 86 (Pulley) and A 104 140 14 85 (Air Pump). My local MB dealer is saying the pulley can't be sourced and that the Air Pump is £923 with a 4 week wait from Germany. Anyone have any ideas how to source either - preferably the pulley - at a reasonable cost?

Many thanks,

John - + 44 7967 646781

 

[jaymanek]

Im sure there will be a way around this... Is your car in import? Ive never heard of an air pump on a UK W124...

If so maybe you could just dispense with it altogether...

 

[jcrossan]

No, unfortunately it is "pukker". This is something MB introduced around '93. It is recognised by MB UK as standard spec and is present in the V Belt diagram of the period. I think it was brought in for increasing emmissions control, globally.

I initally thought it was the Air Con pump and could take it out of the V Belt circuit.

 

[jaymanek]

Yes but can it not be missed out now? Just use a smaller belt? Im sure it will still pass MOT etc without it..

 

[jaymanek]

Ive just done some homework and the air pump was discontinued as of January 1994 as it caused the catalytic convertor to overheat!

Just get rid of it...

 

[jcrossan]

OK - thanks. I'll give it a go and report back...............

 

[kth286]

OK - thanks. I'll give it a go and report back...............

To reassure you I have never had an airpump fitted on my (same engine) coupe

 

[jcrossan]

jaymanek - Thanks for your help, it appears to have worked a treat. I removed the pump, put a simple brace where the "attaching" points were for the pump and fitted a shorter belt. This far, no warnings lights on the dashboard.

 

[jaymanek]

Arent there any hoses you need to black off too?

 

[Ian B Walker]

Arent there any hoses you need to black off too?

One vac hose, one air line and in between cylinders 3 and 4 there is a metal pipe which needs removing and blanking off