Here is the video in 4k https://youtu.be/gbQgz-DZWbg just change the video quality playback on YouTube(the gear icon beside full screen icon on the lower right side of the video)

Oil leak behind the engine d40d
 

I am new to this so please bear with me.
I have just bought a volvo v40dse estate on a 2002 plate.
There is a lot of oil behind the engine block just below what I assume is the air intake.
It is the 1.9 turbo diesel Renault engine.
I have been reading the post on egr valves.
The large diameter pipe coming from the top of the intercooler is coated with wet oil and the hole above the egr valve where the throttle body joins is also gummed up with wet oil and carbon.
The car goes along and starts fine except for a bit of hesitation at around 2000 rpm the car seems to slightly speed up and then hold back but if you floor it then it goes fine.
Can anyone help me with where the oil is coming from and how it is getting into the intercooler and what I need to do to fix it.
And if possible what gaskets If any I would need If I have to remove the inlet manifold.
Thanks.

What are the differences between the 2 parts EGR and the "Welded" One piece EGR?

thanks!

it comes in one peace instead of two. I would think that it would be a bit more easier to remove the EGR since there is lot of surface to grip it and remove it from the Air intake housing.

Volvo S40 2.0 Diesel EGR
 

Hi new to the forum today, need some help with egr on S40 2.0 diesel, seems very sluggish on pickup upto 2000 rpm, got manual for car saturday find it hard to believe where & how it tells you to remove the egr for this model.

Can someone shed some light on where the egr is on this model & confirm that it is fairly easy to get at ?
After reading the manual i was left bit confused, having done egr on a previous car i had proved to be quite simple.

Thanks +1
 

Excellent and thorough. Although I have to admit, I'm all for blanking and doing the necessary ECU adjustments along with a bit of tuning... But I do realise that for many, cleaning and keeping the car original is a valid and good option.

egr problems
 

hi new to this forum but here goes I have a 2006 d5 v70 engine system service light came on so the codes read egr valve not working so got garage to replace both the valve and the position sensor car drives ok till you let it drop back down to tick over then goes in to limp home mode any ideas would be great!!!!!!!

EGR valve removal after 225,000 miles (360,000 km)
 

My Volvo V40 1.9 Diesel 115 bhp, is drinking more fuel, accelerating less well and the engine is hesitating at around 2000 rpm. The car has a full service history, so what is the problem? Then I noticed this thing called an EGR valve, which Volvo neither service nor check.

Inspired by this excellent thread by Biotoxic I thought I would clean my EGR valve. All went well. The solenoid separated from the EGR valve. But the EGR valve was stuck fast in the inlet manifold.

So, lots of penetrating fluid, a wooden stick and a rubber hammer were tried, with no reward.

Then a cold chisel and steel hammer was tried. The EGR valve was bruised but survived unmoved.

I realised that less brute force and more brain power was necessary. I researched the idea of heating the manifold and made a bespoke tool to use as a drift.

I know nothing about the manifold's aluminium alloy, but realised that an oxyacetylene torch would not be good. I settled for a hot air gun (1800 Watt, 600 Centigrade).

https://e3a657a2-a-62cb3a1a-s-sites..../HotAirGun.jpg

My new tool was made from an old tyre lever and a M8 nut and bolt.

https://e3a657a2-a-62cb3a1a-s-sites....0/NewTool1.jpg

https://e3a657a2-a-62cb3a1a-s-sites....0/NewTool2.jpg

https://e3a657a2-a-62cb3a1a-s-sites....0/NewTool3.jpg

An appropriate weight hammer was selected

https://e3a657a2-a-62cb3a1a-s-sites....ClubHammer.jpg

I applied the hot air to the manifold casting in the area of the EGR valve. After about 10 minutes the EGR area of the casting had reached 50 Centigrade. Then the new tool was engaged in the bolt holes of the EGR valve. A few light strikes with the hammer caused the first movement of the EGR valve. 10 minutes later it was out.

It was oily, sooty and black. I tried to clean it with kerosene, acetone, carburetor cleaner and a toothbrush. None were that helpful. More reading suggested that a ultrasonic bath would clean this valve. I prepared a cleaning solution from detergent 5 g, sodium hydroxide 5 g and water 1.5 l. Three sessions in the bath left only a brown varnish on the valve.

The valve was so clean it slid straight back into the manifold.

s60 petrol T4 model
 

can you tell me if the above model has an EGR valve. My D4 has and I am thinking of switching to the T4 to avoid this problem . Have you any idea?
Cheers
Ian

Wow what a great post, I don’t have a problem at the moment but will be definitely coming back here if I do.