Leaking Oil Cooler Repair Aftermath
Thread Starter
Newbie
Joined: Feb 2018
Posts: 4
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2009 E320
Leaking Oil Cooler Repair Aftermath
Took our 2009 E320 Bluetec to Schumacher European MB dealer in Scottsdale, AZ due to an oil leak. Service advisor said oil cooler o-rings were source of the leak and required replacement, and gave us the option of replacing a cracked clean air line for an additional $480. We received the car back after service and paid the $3,178 bill to replace two o-rings (parts cost $20.29) and the cracked clean air line.
I immediately noticed a 5mm tear in the driver's seat MB Tex material where a screwdriver tip might sit in the back of a mechanic's pocket, the car idled with a higher than normal vibration, and upon starting the preglow indicator lamp remained illuminated for approximately two minutes accompanied by the CHECK ENGINE caution message which stays illuminated. The next day I also discovered an oil covered bolt in our garage stall where the car is parked. I emailed the dealership GM who had their service manager call me and brought the car back for inspection. The service advisor emailed me saying, "The check engine light is indeed the glow plug module. It is a sealed module on the drivers side engine compartment. The other thing is the motor mounts. It's a common failure at the cars age." The dealership is asking us to pay for these two repairs with a 15% discount on the bill.
Any thoughts? Are these symptoms coincidental timing or are they caused by the service to repair the leaking oil cooler o-rings?
I immediately noticed a 5mm tear in the driver's seat MB Tex material where a screwdriver tip might sit in the back of a mechanic's pocket, the car idled with a higher than normal vibration, and upon starting the preglow indicator lamp remained illuminated for approximately two minutes accompanied by the CHECK ENGINE caution message which stays illuminated. The next day I also discovered an oil covered bolt in our garage stall where the car is parked. I emailed the dealership GM who had their service manager call me and brought the car back for inspection. The service advisor emailed me saying, "The check engine light is indeed the glow plug module. It is a sealed module on the drivers side engine compartment. The other thing is the motor mounts. It's a common failure at the cars age." The dealership is asking us to pay for these two repairs with a 15% discount on the bill.
Any thoughts? Are these symptoms coincidental timing or are they caused by the service to repair the leaking oil cooler o-rings?
Member
Joined: Dec 2015
Posts: 110
Likes: 10
From: Northen California
2012 e350 bluetec
Sounds like another Dealer horror story. First, a tear in the MB Tex seat magically appears. Second, how could the motor mounts all of a sudden go bad while the car was in the dealership's care? If they we're bad when you brought it in what caused them to go bad while it was standing still in the shop? How about the loose bolt? Where did that come from?
Can't speak to the glow plug module but everything here sounds suspicious.
I'd call MB directly on this one. Have a factory rep meet you at the dealer to discuss. With this dealer things could turn into a "black hole" of expenses.
Can't speak to the glow plug module but everything here sounds suspicious.
I'd call MB directly on this one. Have a factory rep meet you at the dealer to discuss. With this dealer things could turn into a "black hole" of expenses.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
Any SA who tells GP module is on driver side of the engine would not get my business anymore
Unfortunately AZ is not much of Mercedes country and I suspect that they don't have many Bluetecs at all, so somebody is learning how to works on those cars and you pay for it.
When GP module, being electronics can go without warning, the shaking that happen after the repair should bring better explanation.
What's the mileage?
The $3800 is like 50% of car value, so that once more proves that MB is not a brand that you want to have dealer-repaired.
Unfortunately AZ is not much of Mercedes country and I suspect that they don't have many Bluetecs at all, so somebody is learning how to works on those cars and you pay for it.
When GP module, being electronics can go without warning, the shaking that happen after the repair should bring better explanation.
What's the mileage?
The $3800 is like 50% of car value, so that once more proves that MB is not a brand that you want to have dealer-repaired.
Member
Joined: Dec 2015
Posts: 110
Likes: 10
From: Northen California
2012 e350 bluetec
Correction to my last post. I meant to say "if the motor mounts were not bad when you brought it in, what caused them to go bad sitting in the shop".
Also, if the engine started running rough after their repair, might that have led them to conclude the motor mounts were the problem?
I would definitely call MB corporate and have them send a qualified MB diesel tech rep out to meet you at the dealership and have them explain everything.
Too many coincidences and unexplained problems here.
Also, if the engine started running rough after their repair, might that have led them to conclude the motor mounts were the problem?
I would definitely call MB corporate and have them send a qualified MB diesel tech rep out to meet you at the dealership and have them explain everything.
Too many coincidences and unexplained problems here.
Newbie
Joined: Oct 2015
Posts: 5
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2008 E320 BlueTEC
MB in Arizona
There are seven MB dealers in Arizon, five in the Phoenix area. Schumacher is one of the biggest in the US. Don’t think lack of Benz knowledge is the issue. With the exception of the tear in the seat, the other issues are legit.
Member
Joined: Dec 2015
Posts: 110
Likes: 10
From: Northen California
2012 e350 bluetec
No offense intended to rjinaz but since this was your first post, are you in anyway affiliated with the dealership in question? Or any of the others?
I was suggesting an independent look at the problems encountered to act on behalf of the owner.
Here's my take on what he posted.
He brought the car in for an oil leak. No mention of any others problems in his post.
He left with the following:
1. A tear on his seat
2. A high idle/vibration problem
3.A pre-glow indicator lamp lit
4. A check engine light on
5. A missing oil covered bolt of unknown origin
It's hard to call all of those ligit if they were not there before his visit.
I was suggesting an independent look at the problems encountered to act on behalf of the owner.
Here's my take on what he posted.
He brought the car in for an oil leak. No mention of any others problems in his post.
He left with the following:
1. A tear on his seat
2. A high idle/vibration problem
3.A pre-glow indicator lamp lit
4. A check engine light on
5. A missing oil covered bolt of unknown origin
It's hard to call all of those ligit if they were not there before his visit.
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Senior Member
Joined: Aug 2016
Posts: 301
Likes: 29
From: S. W. Washington State
2008 E320 BlueTec, 1980 300 SD
Please, the question was: "are you in anyway affiliated with the dealership in question? Or any of the others?"
