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Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5154679 07/08/19 11:53 AM
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PimTac Offline
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Was there any indication that the oil had not been changed regularly during the cars life prior to this?

Another sign that MB quality is not what it used to be.


2017 Mazda CX5
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Roki OEM filter.
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: PimTac] #5154720 07/08/19 12:29 PM
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Originally Posted by PimTac
Was there any indication that the oil had not been changed regularly during the cars life prior to this?

Another sign that MB quality is not what it used to be.

The top of the engine looks okay but does have some light varnish. It was a rental for the first part of its life, then after that it was dealer-serviced at the correct intervals before the current owner purchased it.


2011 Toyota Prius 1.8L - 200K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 142K - Valvoline Premium Blue Restore 10W-30
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5154728 07/08/19 12:38 PM
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Holy crap, that's an expensive service for such low mileage crzy and your price was a bargain compared to the dealer.


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Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5154841 07/08/19 02:16 PM
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JeffKeryk Offline
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Michael is so good I am gonna have him do the oil change services on our Model 3.
No one else!


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Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5154871 07/08/19 02:38 PM
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ford46guy Offline
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86K wow
I really appreciate my Lexus now. I never heard of a phaser/timing failure on the forum. That job is at least 4k at an indy.
Now a HPFP frown. What was the mode of failure? Sometimes they die because of extended OCIs and the cam wearing down. Maybe the first problem was due to that too.

Last edited by ford46guy; 07/08/19 02:42 PM.

95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: ford46guy] #5155120 07/08/19 07:22 PM
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Originally Posted by ford46guy
86K wow
I really appreciate my Lexus now. I never heard of a phaser/timing failure on the forum. That job is at least 4k at an indy.
Now a HPFP frown. What was the mode of failure? Sometimes they die because of extended OCIs and the cam wearing down. Maybe the first problem was due to that too.

I am not sure. But the HPFP has a $70 core charge so I probably should not take it apart.

This particular HPFP design does not use a cam follower and the cam's are usually not an issue.


2011 Toyota Prius 1.8L - 200K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 142K - Valvoline Premium Blue Restore 10W-30
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5155179 07/08/19 09:02 PM
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My n54 cam phasers are $80 and take 20 minutes. They're the only thing easy about that engine.


2007 BMW 335i n54 210,000 miles, lubricated by whatever is on sale
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5155651 07/09/19 11:23 AM
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How can these parts wear out so soon? Did they skip the heat treatment so they can save $10? It's almost like they design everything in CAD and have only 1% safety margin past warranty.

The way the intake is routed I'm not surprised the hose crumble, and the wiring harness between 2 ignition coils.... Mitsubishi would be proud (at least the 2nd gen Eclipses was priced fairly).

It's sad to see the 3 point star on such a piece of engineering.


Last edited by PandaBear; 07/09/19 11:26 AM.

"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: Smokescreen] #5155659 07/09/19 11:31 AM
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Originally Posted by Smokescreen
coffee

Ill just stick with my low tech American iron and my reliable Japanese commuter...


Awesome; if only I had done the same...




Mine:
2014 M235i
2009 Cooper Clubman
1999 Wrangler Sahara
1995 318ti Club Sport

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2015 X1 xDrive28i M Sport


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Buy what makes you smile...
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: PandaBear] #5155762 07/09/19 01:30 PM
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2004tdigls Offline
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Originally Posted by PandaBear
How can these parts wear out so soon? Did they skip the heat treatment so they can save $10? It's almost like they design everything in CAD and have only 1% safety margin past warranty.

The way the intake is routed I'm not surprised the hose crumble, and the wiring harness between 2 ignition coils.... Mitsubishi would be proud (at least the 2nd gen Eclipses was priced fairly).

It's sad to see the 3 point star on such a piece of engineering.



The explanation is pretty simple, my neighbour is the head mechanic at Vancouver Mercedes, PM me for his name and email if you like.

Mercedes, BMW and VW among others have decided to make their cars "maintenance free", with 30, 000 km oil changes on the Sprinters, never change transmission and differential oils on virtually all models, and up to 20, 000 km OCI on other cars.

The concept is simple, most cars are leased, so the "owner" does three or four oil changes and trades the car in, by which time in the opinion of my neighbour the engines, particularly the in the Sprinters , are "done". The car usually has 10-20 km of warranty left to make the vehicle marketable as a "factory maintained used car"

He drives a new B250 turbo and changes the oil every 6 months or 8000 km, less than half what Mercedes sees as required. In his opinion if you do this the engines should last "forever"

I do the same with my 2001 ML and i use a hdeo 15w40, the engine uses 1/2 liter every oil change

Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: PandaBear] #5156463 07/10/19 06:47 AM
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Originally Posted by antonmnster
My n54 cam phasers are $80 and take 20 minutes. They're the only thing easy about that engine.


Are you thinking of the cam position sensor or solenoid sensor? The eccentric shaft actuator is about (OE)$200 or $400 (Genuine BMW) and a PITA.

Originally Posted by PandaBear
How can these parts wear out so soon? Did they skip the heat treatment so they can save $10? It's almost like they design everything in CAD and have only 1% safety margin past warranty.

The way the intake is routed I'm not surprised the hose crumble, and the wiring harness between 2 ignition coils.... Mitsubishi would be proud (at least the 2nd gen Eclipses was priced fairly).

It's sad to see the 3 point star on such a piece of engineering.



I wonder if automakers have to re-design a part just to avoid infringing on patents of other automakers and consequently sometimes the unique design is just inherently compromised.

Last edited by BMWTurboDzl; 07/10/19 06:53 AM.

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Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: 2004tdigls] #5159649 07/13/19 02:14 PM
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Originally Posted by 2004tdigls
.... my neighbour is the head mechanic at Vancouver Mercedes ....

He drives a new B250 turbo and changes the oil every 6 months or 8000 km, less than half what Mercedes sees as required. In his opinion if you do this the engines should last "forever".

The former head mechanic at a BMW dealership in Edmonton advised me to do something very similar. Change the engine oil at half the interval suggested by the oil life monitor. (You change the oil but don't touch the monitor which keeps the other maintenance recommendations at the correct interval).

It turns out his wife drives (or drove anyway) the same BMW as I do - which he described as one of BMW's more reliable recent products. I took that family connection as an endorsement of my 528i ownership. [Kind of like a physician saying, "if it were me, this is what I would do".]


2000 BMW 528i 5MT M Sport
2007 Honda Accord EX-L 4Door V6 6MT
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: 2004tdigls] #5161114 07/15/19 03:45 AM
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The Critic Offline OP
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Originally Posted by 2004tdigls
Originally Posted by PandaBear
How can these parts wear out so soon? Did they skip the heat treatment so they can save $10? It's almost like they design everything in CAD and have only 1% safety margin past warranty.

The way the intake is routed I'm not surprised the hose crumble, and the wiring harness between 2 ignition coils.... Mitsubishi would be proud (at least the 2nd gen Eclipses was priced fairly).

It's sad to see the 3 point star on such a piece of engineering.



The explanation is pretty simple, my neighbour is the head mechanic at Vancouver Mercedes, PM me for his name and email if you like.

Mercedes, BMW and VW among others have decided to make their cars "maintenance free", with 30, 000 km oil changes on the Sprinters, never change transmission and differential oils on virtually all models, and up to 20, 000 km OCI on other cars.

The concept is simple, most cars are leased, so the "owner" does three or four oil changes and trades the car in, by which time in the opinion of my neighbour the engines, particularly the in the Sprinters , are "done". The car usually has 10-20 km of warranty left to make the vehicle marketable as a "factory maintained used car"

He drives a new B250 turbo and changes the oil every 6 months or 8000 km, less than half what Mercedes sees as required. In his opinion if you do this the engines should last "forever"

I do the same with my 2001 ML and i use a hdeo 15w40, the engine uses 1/2 liter every oil change

More frequent oil changes would probably help with timing chain wear, but I doubt it would have any effect on the lifespan of the cam adjusters. The mechanism which fails is internal to the adjuster.


2011 Toyota Prius 1.8L - 200K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 142K - Valvoline Premium Blue Restore 10W-30
Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5186135 08/13/19 02:42 PM
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Great write up! Hard to find this info elsewhere.

Richard

Re: 2012 Mercedes-Benz C250 1.8L TGDI - P034062 - Cam Adjuster Repair [Re: The Critic] #5186315 08/13/19 06:21 PM
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Good post, good engine porn -and most of all, good work. Wish we had a "Thumbs-up" button.

.... Funny, in another thread, some guy dropped in and said we all need to stop changing our oil so often. -And in this thread, the message being driven-home, is to change it at half the recommended interval. Looks like one size does not fit all...

Extended OCI... Maybe some folks like to go there but, an OC cost me under 30 bucks, an oil analysis cost 30 bucks... A top-side engine repair will cost at least $1500. In my view of the world, I'll stick to changing the oil 2x a year and doing a UOA once every year or two.

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