Guitarjon said:

I know car manufactures often compromise when it comes to putting parts in cars as they want economy, low emmisions, low cost and aim towards what the majority of people want such as low road noise etc.

So why did they put an EGR valve/system in the TD4 if you lot are all taking them out? I don't have the mod and will more than likely do it down the line at some point. I just cant understand why they put it in other than emissions? Is this the sole reason?

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other than emissions? Is this the sole reason?

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Guitarjon said:

I've cleaned a few dirty engine bays so we will see whether or not it is the dirtiest job I've ever done.

I quite like cleaning things when I know there will be benefits. Eg I cleaned my Mums kitchen lights the other day knowing full well they would give off a brigher light. She was made up. I had satisfaction. You could say being a car detailer gets you abit anal when it comes to cleaning...

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Singvogel said:

It was an ineffective morsel to throw to the environmentalists, as a result of some euro-emissions gobbledegook thought up by some grey faceless scrote/scribe in a grey office in Brussels/Strasbourg.

It didn't work very well on a new engine and even less well on a high mileage older one now.

Cleaning it, and the intake manifold, was the single dirtiest job I've ever had to do in 40+ years of DIY motor maintenance.

As you may perhaps just have deduced, I don't like the damn things.

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Singvogel said:

It was an ineffective morsel to throw to the environmentalists, as a result of some euro-emissions gobbledegook thought up by some grey faceless scrote/scribe in a grey office in Brussels/Strasbourg.

It didn't work very well on a new engine and even less well on a high mileage older one now.

Cleaning it, and the intake manifold, was the single dirtiest job I've ever had to do in 40+ years of DIY motor maintenance.

As you may perhaps just have deduced, I don't like the damn things.

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Ian jones said:

I agree , this mod is worth doing , i have never seen gunk as extreme as this in any engine bay before I would describe it as a mixture of underseal/soot and grease , 10mm deep through out the intake manifold and the 4 ports of the engine !

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