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G350 Motor problems?

Stephan

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Had 'campaign'/recall performed on my G350. Some pics of an oil cooler placed below the sump protected by a modified fenestrated bash plate.

What do you guys think??


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Pete460332

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No idea - EPC just says Oil cooler but judging by the size of the pipe I would say engine oil . Looking up the Code MK0 it says "External Engine Cooling" date 29/7/2014. Did you not just have the normal bigger sump fit ? Did they open up your sump to check for particles inside?
CodeSAComponent search 20160326 010545 PM.jpg
 

Alan

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That is the exact mod Waldi did to his and other G's (290 GDT's) to cool the gearbox.
I am going to do that exact mod but use it as a charge cooler radiator.
 

Stephan

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No idea - EPC just says Oil cooler but judging by the size of the pipe I would say engine oil . Looking up the Code MK0 it says "External Engine Cooling" date 29/7/2014. Did you not just have the normal bigger sump fit ? Did they open up your sump to check for particles inside? View attachment 8185
Pete,

Sump was replaced in 2013. Before the current recall they first checked the vehicle before ordering the recall parts. Somehow feel 'vulnerable' not knowing what a Witbank Mercedes Benz mechanic's capabilities are, what they have to do and if they are competent in doing it. The Service Manager said they have done 6 conversions already and have 18 G's on their books (not all G350). They only let 1 specific mechanic do the conversions in order to maintain standard. They are however conservative with their communication.

I have had the vehicle since December 2014 and never had any engine heating problems - was surprised to hear that they wanted to add an oil cooler.
 

Dikfrik

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Yes this is more or less what Waldi did but he added fans as well - the setup is a bit more vulnerable to clogging with mud and a stick could maybe find its way through the expanded metal and damage the cooler, although i think it will have to go past the pipe cross member first and therefor possibly OK. The fans on Waldi's conversion could be vulnerable to water if doing water crossings? Not sure if they are IP 67 or 68? One will have to be sure they are not running if you start wading.

I wonder what this setup will cost?

Alan i have been toying with the idea of extra cooling here enhancing Waldi's system.I am convinced the intercooler on the OM602 for the 290 is too small not helping the engine temp issue. Damaging the intercooler wiill not render the vehicle useless However if you leak engine or transmission oil here you will eventually stand. Placing an air-to-air charge air cooler here will free up space on the radiator on my 290 and maybe i can fit a four-core radiator in. Can one not look for some other place under the chassis where there will be good airflow for the intercooler - the friction losses on air is small and one can oversize the pipes, making them out of metal to even get more heat exchanging?
 

solmanic

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Had 'campaign'/recall performed on my G350. Some pics of an oil cooler placed below the sump protected by a modified fenestrated bash plate.

What do you guys think??
I had this oil cooler service measure carried out during the last service in February and since then there has been a noticeable vibration/hum through the steering wheel at around 1200-1300RPM. My vehicle has been back to the dealer twice since I noticed this and both times the service manager has taken it for a test drive with me and confirmed he can feel the vibration. They have identified that the vibration occurs when they attach & tighten up the new front bash plate. The new oil cooler is apparently mounted on rubber mounts so they suspect the new oil cooler lines are resonating somehow then the bash plate seems to magnify this to the point where it's felt through the steering. They loosened & re-tightened the oil lines and bash plate and some other heat shields & bits but say they cannot completely eliminate the vibration.

The service manager has said he wants to drive another G350 that has had the service measure done to see if it affects all of them, or is unique to mine. Consequently can I ask anyone on here who has had the service measure done whether they have experienced this? They assure me that they can't see anything that is likely to wear out as a result of this vibration, but I'm not so sure. Looking at how tightly jammed in the new oil cooler is it doesn't surprise me that something is touching somewhere.
 

Stephan

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I am pleased you posted. My G350 is doing exactly as you describe! Had recall 3 weeks ago.

What to do??


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solmanic

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Thanks for the reply Stephan. One other G350 owner on the AGOA forum has also had the service measure done but doesn't report any vibration. His G has had a suspension lift though which may have avoided this. I've notified my dealer that the issue doesn't appear to be limited to my vehicle alone but I'm still keen to hear if any others are experiencing this.
 

Stephan

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Thanks for the reply Stephan. One other G350 owner on the AGOA forum has also had the service measure done but doesn't report any vibration. His G has had a suspension lift though which may have avoided this. I've notified my dealer that the issue doesn't appear to be limited to my vehicle alone but I'm still keen to hear if any others are experiencing this.

I have OME suspension - 50mm lift.
 

Stephan

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Vibration only started after MB campaign changes. The OME suspension was fitted months prior without any vibration or other side effects.
 

Mario

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Vibration only started after MB campaign changes. The OME suspension was fitted months prior without any vibration or other side effects.
Hi Stephan,
I'm in NSW, Australia with a 2012 G350.

I have found the conversations between you and the other guys very helpful, so thank you.

Im thinking of replacing the stock springs+shocks with the OME kit - Im looking for a more comfortable ride on the country dirt roads.
Just wondering does this require any other adjustments because of the 50mm lift (hoses etc)???

p.s. I've had both the engine and the transmission replaced. The bigger sump installed and the recall for the oil cooler.

Regards,
Mario
 

Stephan

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Hi Stephan,
I'm in NSW, Australia with a 2012 G350.

I have found the conversations between you and the other guys very helpful, so thank you.

Im thinking of replacing the stock springs+shocks with the OME kit - Im looking for a more comfortable ride on the country dirt roads.
Just wondering does this require any other adjustments because of the 50mm lift (hoses etc)???

p.s. I've had both the engine and the transmission replaced. The bigger sump installed and the recall for the oil cooler.

Regards,
Mario
Wow- both engine and transmission!

No adjustmensts had to be made with the OME suspension. Just one thing though: the front springs should be the stiffer option. Cornering with the lighter version causes considerable rolling. I had it replaced after 30km. - no cost. VERY comfortable ride with stiffer version.

https://drive.google.com/open?id=0B5IRXp1jKkUoXzc2azF5Wk9xVGs

See specifications in brochure.



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Ernst

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I was notified of the Campaign, made an Appointment for the next Week and on the way Home my Engine seized solid on the Outeniqua Pass. MB has replaced the Engine with a new one, fitted the Oil cooler and replaced the Catalytic Converter with its Sensors. Got my Vehicle back Yesterday.
How this problem with the overheating of the Oil was not detected during Testing at the Factory and on the Road is beyond me.