Mercedes Vito Van Viano W639 PCV Valve Replace Oil Catch Can Installation CDI A6110160334

How I replace the PCV valve plus oil catch can installation on your 4 cylinder diesel W639 Vito 109CDI 110CDI 111CDI 113CDI 114CDI 115CDI 116CDI. Part# A6110160334
The generic low cost catch can will perform better with an internal baffle. Please watch this short video that explains how easy it is to modify it: • OM642 Mercedes Oil Cat...
Music:
Song: Erik Lund - Hope
/ erik-lund-hope
Song: Fredji & Tobsky - Flow (Vlog No Copyright Music)
Music promoted by Vlog No Copyright Music.
Video Link: • Fredji & Tobsky - Flow...

[@JohnJCButtigieg]

Thanks Scott!

[@DeilawT]

Thanks again Scott for another great instructional video and it came as I was wanting to add this to my Vito. I look forward to more Vito related instructional videos.

[@ScottElliott152]

Glad I could assist. As things come up I make the tutorials. The power window repair is helpful as that's a common problem. The auto transmission service is also worth knowing. I'd better get the videos organised into playlists!

[@ralphprice5619]

Hi Scott, thanks again for documenting another of your projects. I was curious as to what triggered you to replace the PCV valve. Apart from capturing oil mist from the crankcase as per your example at the end of the video from your car, have your been able to ascertain any other effects? Cleaner exhaust for example with capturing the oil vapours rather than attempting to burn them? Thanks Ralph

[@ScottElliott152]

Hi Ralph ... I removed the rubber pipe to the turbo and noticed a small puddle of oil in the intake. I decided to replace the PCV valve as the Vito is nearly 14 years old. The PCV valve tends to be overlooked but it does have a finite life. The rubber diaphragm deteriorates. It gets hard and brittle and sometimes splits. It also gets sticky and can adhere to the underside of the cap and subsequently have restricted movement. I removed the cap from the PCV I took off it sure enough the rubber was hard and not sealing on the outlet properly. My research tells me this type of PCV has a normal life of about 6 to 8 years. I also feel modern diesels benefit with a catch can. They pump a lot of oil mist due to high compression and long stroke. These engines all have intake port shut off flaps (swirl flaps) driven by a servo motor and exhaust gas re circulation (EGR valve). The oil mist causes a build of a tar like material produced by mixing oil mist with exhaust gas. The sticky tar builds up in the intake system and starts interfering with the swirl flaps to the point they jam partially closed creating all sorts of problems. The servo motor can fail because the flaps aren't moving freely. We have that issue with ML320CDI in our family. The swirl flap servo has failed and the mechanism driving the flaps appears to have snapped. I'm pretty sure the intakes are gunked up with tar. It's a pity we didn't fit a catch can earlier as maybe the issue could have been avoided. It doesn't take long before you generate a cup of oil in the bottom of the catch can ... oil that would have been introduced to the intake system via the turbo.

[@glasser2819]

@@ScottElliott152 I am not familiar with that 4Cyl diesel but V6, V8 gasoline in US... I can say that when the narrow PCV vent hoses get plugged up with junk.... then the oil filter and cooler seals start seriously leaking oil pressure with a chance after quick seals-only repairs to blow up the weak cooler internals and start mixing oil in coolant. So yes stupid German PCV design is nothing to be overlooked. (Extra nuggets to keep an eye on or else big damage: weak serpentine tensioner and plastic idlers and extra weak timing chain tensioners are a Benz staple) 👍

[@davidhowick3665]

Thanks for clear video …what is part number for the white dog?

[@ScottElliott152]

Lol ... 75% Schnauzer/25% Poodle.

[@xiperv7186]

Or do what I did put the intake pipe in the dish washer and replace the oil seperator unit with MBs modified part (that way you don't need to install a oil catch can)

[@dinosauraccounts1411]

Hi Scott, Would you recommend changing copper seals on injectors as a maintenance task?

[@ScottElliott152]

Only if there are signs of leaking. There's no mention in the WIS that they're to replaced periodically.

[@gazzaoco]

Don't suppose you would do mine please

[@ryanm8517]

Hi do you need to torque the valve down?

[@ScottElliott152]

I torqued it by "feel" as I've been doing this kind of work for over four decades. You can use a torque wrench if you wish. I use a torque wrench on critical structural bolts. The PCV valve is not a structural component.

[@wenceslaogomezvives382]

Hello Scott, I have a 2011 Viano V6 diesel, and since I bought it I have consumed 1.5 liters per 1000 km, could this valve be the cause of the high oil consumption? I don't get any white smoke but the issue has me quite concerned, I smell oil vapor from time to time inside the passenger compartment, could there be overpressure inside the engine, and for that reason does it consume oil? thanks for your videos, greetings

[@ScottElliott152]

It's probably not the piston rings. It could be the Positiive Crankcase Ventilation system. Replace the PCV valve and the orange seals first and see what happens. It's not expensive and they're easy to replace.

[@wenceslaogomezvives382]

@@ScottElliott152 thanks, what are the orange stamps? Are they the ones that seal the valve to the engine? I saw the video but I have to figure out how to put subtitles in Spanish, my English is very basic

[@ScottElliott152]

@@wenceslaogomezvives382 The orange seals on the turbo and the hose from the PCV valve.

[@andytriggsy912]

I Scott, was wondering if you could tell me if the injectors are supposed to have a rubber O ring in the groove where the nozzle screws off. Silly me ran my 05 Vito completely out of diesel and caused a block somewhere days later, and wont start now. I pulled the injectors out and unblocked them, then had to put heicoils in all 4 clamp bolt holes, as they were stripped out, got it all back in with new copper washers, still can't get it running... Any tips before I get a mechanic out.. probably most definately new fuel filter for starters, and where the short metal fuel lines from injectors to the rail ( I'm assuming that's the rail) I noticed that cranking it with the nut cracked open a bit, there was hardly any fuel coming out compared to a heap from the other ones.. would that be the issue maybe, and how would I go about unclogging that? Any tips would be much appreciated, and sorry for the short story. Thanks mate

[@ScottElliott152]

Hi Andy ... no o-ring that I'm aware of. I did the same thing with my Nissan 4wd and had to change the fuel filter ... so replace the fuel filter for starters. You've obviously sucked some debris from the tank and it's caused a restriction. It's a tedious process of checking all the lines for blockages.

[@andytriggsy912]

@@ScottElliott152 I didn't think they had an O ring, I have seen some injectors with them but all good. And I'll get new filter and hope for the best. One more thing... Now after ignition is on and glowplug light turns off, I'm getting a -720 coming up, bottom centre on cluster.. Thanks for yr reply, and love your videos too! You've saved me heaps of money already! 👍👍

[@ScottElliott152]

@@andytriggsy912 That might be the service reminder ... you're 720km overdue. It should be in the manual.

[@andytriggsy912]

@@ScottElliott152 Ok thanks for your time Scott.

[@rachidbenaouf478]

Bonjour, a votre avis désactivé la vanne egr ou faire un récupérateur d'huile,merci

[@ScottElliott152]

Je pense que l’ajout d’un bidon collecteur d’huile est une solution peu coûteuse. Je n'ai désactivé le système EGR sur aucun de mes moteurs diesel. La recirculation des gaz d'échappement ne s'active qu'en vitesse de croisière partielle et ne causera pas de dommages à votre moteur si vous réduisez le volume de brouillard d'huile pénétrant dans le système d'admission.

[@rachidbenaouf478]

@@ScottElliott152 merci beaucoup pour votre conseil.

[@danielanderson5099]

Hi Scott...how are you? Look I was wondering if you could tell me where I could find the camshaft position sensor on the W639 engine...i found the crankshsft sensor ok...was wanting to replace them both. Thanks Scott.

[@ScottElliott152]

I'm well thanks Daniel. I buy most of my parts from reputable eBay online sellers ... also www.micksgarage.com, FCP Euro, www.rockauto.com to name a few. I just had a quick search on eBay and there are plenty of them. Scott

[@danielanderson5099]

@@ScottElliott152 thanks Scott for your quick response...but i really meant where on the motor...i can't find the crank shaft sensor! Im sure its steering right at me!

[@ScottElliott152]

@@danielanderson5099 lol ... "where can you find it on the motor". Use this online parts finder: partsouq.com/en/catalog/genuine/unit?c=Mercedes-Benz&ssd=%24%2AKwEpHQxmKVIkRVpAUGwtI3FlRUJcLSIvLjwvEGA4aT4hOFA9bm49OSAsKC4tJTNgK3IhKyUrLWdjagI3cm84Jz5ZVz8zYCVyISgrKC8rMT0lbmosLSsuZmRreioMKzlsPyY5TVlZdH9pLSooLigoKCxzemM5Nj9xeDgnPXR_aS0qKD43OG58YHZyOTY_cXA4Jz1zbnw5eXM-ITgrLxBufDlsfj4hOC49PwAAAABOsiTV%24&vid=0&cid=1876&uid=26441&q=wdf63960523253163

[@danielanderson5099]

Scott...the diagram was awesome. Thanks so much for your time and help.

[@johnkaimins9998]

Hi Scott ~ quick Q ~ does the new PCV valve come with new o rings?

[@ScottElliott152]

Hi John ... not on the valve I bought ... I had to reuse the existing. It will depend on the part you buy. Some will come with new o-rings.

[@johnkaimins9998]

@@ScottElliott152 Thank you for the quick reply!

[@darrenmason3751]

Why the clear pipes? Cheaper than standard?

[@darrenmason3751]

Forget that I realise it’s for the catch can

[@ScottElliott152]

They're PVC oil resistant pipes

[@steviesb7480]

I have a 2007 vito. Inside the pcv is a filter and after 180k it is clogged, I was getting no suction through it and oil all down the engine. So I have removed the filter completely. Do you think it might excessive vent? Filter part no. 1 928 404 841.

[@ScottElliott152]

Hard to say. I'd replace the filter as it's obviously a Mercedes upgrade. My 2006 doesn't have a filter. Regards, Scott

[@steviesb7480]

@@ScottElliott152 Been driving around for a while now without the filter and the van runs much smother. I'll keep checking the oil consumption etc.