Question about 2006 Peugeot 604

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Peugeot Expert EGR Valve

Hi. There is a lot of talk on the forums about this EGR valve on an expert. For the life of me, I cannot locate this valve, does anybody know where abouts it is on my 2.0 HDI?, or does anyone have pics or a link to instructions? My van still smokes and has very little power. Also now its blowing clouds of tiny black particles through the tailpipe. I looked at the exhaust and it seems to be continuous (Cant seperate the cat). I've had diagnostics done at a cost of yet another £35.00 but no fault codes are showing. I really am about to give up the ghost on this and cut my losses,but I would like to think that at least I had a go at finding the fault. Unfortunately, I can't find any info on the net relating to removing the EGR valve or the Turbo. Help please !!!!!! :-(

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EGR is located at the back right hand side of the engine follow the silver pipe from inlet manifold , back and where it joins at the back of the lump , thats the egr!!

2x 8 mm bolts hold it in place + 5 mm allen screw if present secures a braket for wiring

Posted on Jul 20, 2012

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Check for leaks in the turbo pipe or rad fist that the front rad not the water rad

Posted on Jul 13, 2009


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10w40 semi synthetic would be your best bet

Posted on Jun 05, 2009

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SOURCE: Catalitic warning indicator on

cam belt is pretty hefty on these cars so say in uk with damper conditions 100,000miles less in a dry climate like spain ,Use the cheapèst diesel oil you can buy and change it every 6000m ,with oil filter every third oil change .The back exhaust filters on these cars are a problem and what i have done in the past is to fit the standard rear box on .the sensor wire i put a paper cip bridge in across the wire and remove the dash light bulb .Another silly idea was the clutch on these cars ,if it goes and does regulary then fit a modified clutch kit from valeo that comes with a normal flywheel about 600€ trade ,but after that a normal clutch can be fitted for about 180 €retail

Posted on Aug 22, 2009

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Hi, I have a 2.0HDI Expert which was doing the exact same thing as yours, blowing thick black smoke, sluggish and loss of power on gradients, a hissing sound and surging. I replaced the air flow meter but that didn't help. I was told to replace the turbo but a turbo expoert told me not to as it would blow white smoke if it was faulty. I was then told to replace the injectors but a diagnostic test showed them to be functioning fine. I was then told to look at the intercooler which had thick sludge at the lower left pipe. I replaced it today - Sunday 12th July and it is now driving like a new van. It now pulls me up gradients with ease in 4th and 5th instead of having to drop gear to get to the top. I got a replacement from Euro Car Parts for £147 inc VAT. To tell if this is your problem, look through the gaps in the lower section of the bumper at what looks like the radiator and look for sludge over the inside of the bumper and all over the pipe where it joins the back of the radiator (intercooler). Also open the bonnet and look down behind the grille for the same sludge. Hope this sorts it for you. Barry, Newtownards, Northern Ireland.

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