Originally Posted by Motor7
I have read some nightmares, but all were post 2010. Can you be more specific on the issues with the 2007?
The last C I had was a 24' Chevy Vortec 454 and like you no issues at all. But then again I might have put 10K on it in 5 years.
Spend some time here it will educate you.
Here's one from the site:
Once I got this brand new '15 4WD Sprinter two issues came up:
- Clunking noise from the rear axle whenever vehicles starts moving or stops, accelerates or decelerates.
- Standard air conditioner was much less efficient if compared to the same 2WD Sprinter.
Took it to the dealer service - dealer has replaced transfer case for "too much play", but nothing has changed in terms of clunking noise.
Took it to another dealer and ask their mechanic out to diagnose this problem - apparently this mechanic had heard same complains before, so he said that on 4WD Sprinters this noise is normal work of rear axle........:(
- as for the poor performance of air conditioner, he said that in order to improve on fuel efficiency, starting 2015 models MB has put some outside (5) sensors to make air conditioner work more sophisticated but less effective. Therefore he is advising his sales people to convince clients to install auxiliary air conditioner to avoid this issue..... another bummer.
From another site:
The BlueTec diesel is the most complicated & least understood engine Mercedes-Benz makes. * * The average mechanic hates working on them,*because they are a*guaranteed comeback with a mad customer. * * Itís way easier to make money on other models & Mercedes-Benz treats a BlueTec diesel mechanic like heís the one who built this mess. * *Where the owner lives & how they drive, makes a big difference in reliability. * * One owner never has a problem, while the guy down the street is bouncing from shop to shop with nothing but huge repair bills to show for his effort. * * How does that happen? * I understood the problem & how to deal with it, but explaining it to a owner was a different matter. * No matter how many times I rewrote this article, I couldnít fine a concise way of explaining all the nuances of a BlueTec diesel. * *As the years went by, I kept trying to find a better way of explaining this.
This engine & its emission system is a lot like a onion. * *Every time I think I finally understand it, I discover a new level of complexity. * *Anyone that tells you they*understand a BlueTec diesel, hasnít been around enough of them. * *Somehow, BlueTec owners found my*feeble attempt to explain the OM642 BlueTec*diesel. * *Iíve also *noticed this article has caused quite a stir on various ownerís forums. I feel bad for owners who really donít know whatís going on. * * They get on a forum looking for answers, & they get blasted by the forum ďknow-it-allĒ. * *Itís always the guy that knows just enough to sound like he might be right. * *I have no idea why theyíre carrying water for Mercedes. * *These guys question the things I talk about. * *
One of the main reason and it's my fault for being naive thinking service was everywhere. Even if you had a Sprinter that was working well, we all know mechanical things break down. Once I realized there were a lack of Sprinter dealers and an even bigger lack of QUALIFIED diesel mechanic. That forced me not to take a chance of being too far from home and having a breakdown. Even the breakdowns I did have I needed to go 100 miles away get a rental car come home 100 miles return to the dealer another 100 miles then pick up my vehicle and drive 100 miles back home.
I remember when a serpentine belt came off and the dealer said it would be three weeks to get a new belt.
Bottom line it's all about money. If owners were honest and calculated dollars per mile rather than miles per gallon that will give you a true test of the value of a vehicle.