GL 350 BlueTec 2 fuel injectors need to be replaced in two weeks
Fast forward two weeks and two tank fill-ups, and a different injector needs to be replaced! So, the part is being expedited from Germany. At the first incident I was asked whether I was sure I put diesel and not gasoline. As this is my first diesel, I am overly aware at the pump as to what I am putting into the car. The second incident I was told that maybe I had bad diesel or perhaps the second injector was slightly damaged the first go-around, not caught, and eventually failed. Note that we had to go to a dealership where we were on vacation.
I have since looked online and saw that this has been an issue in 2010. However, I haven't seen anything since. I am now going to keep all of my "gas" receipts and keep a log as I don't want this to become an issue of bad fuel which I have read that damage related to bad fuel is not covered by warranty.
Anyone else having similar issues? Is biodiesel a factor? Thanks!
Might have also got some bad diesel contaminated with water or something else. You could try some diesel additive like Redline 85 Plus and I'd change out the fuel filter.
http://www.redlineoil.com/content/fi...ech%20Info.pdf
http://www.redlineoil.com/product.aspx?pid=31&pcid=11
Last edited by vertrkr; Feb 23, 2013 at 12:09 PM.
With state diesel regulations changing, there have been (3) issues that have come up:
1) Whereas in past years when gas pump nozzles would not fit into disels for fillup - nowadays gas pump nozzles will easily fit.. so there are some owners (or spouses, or friends) who now have accidentally filled diesels with gas.. fracks up real quick
2) Some states now allow and/or promote B20 (20% biodiesel mix) and there are no European diesel car engines than warranyy using anything over B5 (5% biodiesel mix) .. can frack up your engine real fast
3) When traveling between regions, some sun-staters are not aware in winter states there is a "winter diesel mix" - and it is possible to cross region lines from warm to winter, and encounter hard starting problems in the cold.
The prepaid maintenance pricing from MB on diesels is a bit punitive as compared to prepaid maintenance for gas V6 - 1st: because MB charges a arm and a leg for AdBlue (which is industry Diesel Exhaust Fluid) 2nd: Because of the 20K interval on diesel fule filter and 3rd: 40K and 50K service contract is inflated, 2012's required 40K tanny service, but 2013's with 7G+ don't require tranny service until 70K.
Also both diesels and gas - I am not comfortable with 40K MB interval on engine air filter replacement - personally I think that is way too long.
Personally, I would bite the bullet on 30K prepaid service - but for future reference track AdBlue useage, cost quote air filter replacement as added service at 20K - withyour 1st 30K use that time to piece together a service strategy 40K and after.
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I love the way the car looks and drives but am a little worried about reliability. So far the first month has not been so impressive.
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JimBarnhart, we are in the Pacific NW.
Here's what we know so far as our car has been at the Service Center for a month and a half now. Yes, you read that right.
It's a software issue. However, MB does not know when the fix will be made. It affects diesel engines in both the ML and GL. The problem, from what I'm gathering, is that MB cannot tie the various circumstances that cause CEL/faulty injectors. Our first instance came up after a cold start on a mild day with the car in the garage. The second instance came up 15 minutes after we started down the mountain after a ski vacation.
Biodiesel is not a factor. Most fuel is B5 in our area, and all diesel tested--both what was in our tank when we got the CELs and two independent draws made by the service center from other local gas stations--tested trace of B5 which passes the fuel test.
Contaminated diesel is not an issue either as the cars have filters to deal with contamination and it would take a LOT of contaminants to cause this issue.
Otis123, I hope that you have a good experience with our GL. We loved ours for the time that we had it. I'm disappointed that we are now in limbo regarding the car.
ericdi, I'm sorry to hear about your issues. I think that this issue is more common than MB wants owners to know. Keep us posted on the reliability.
JimBarnhart, we are in the Pacific NW.
Here's what we know so far as our car has been at the Service Center for a month and a half now. Yes, you read that right.
It's a software issue. However, MB does not know when the fix will be made. It affects diesel engines in both the ML and GL. The problem, from what I'm gathering, is that MB cannot tie the various circumstances that cause CEL/faulty injectors. Our first instance came up after a cold start on a mild day with the car in the garage. The second instance came up 15 minutes after we started down the mountain after a ski vacation.
Biodiesel is not a factor. Most fuel is B5 in our area, and all diesel tested--both what was in our tank when we got the CELs and two independent draws made by the service center from other local gas stations--tested trace of B5 which passes the fuel test.
Contaminated diesel is not an issue either as the cars have filters to deal with contamination and it would take a LOT of contaminants to cause this issue.
Otis123, I hope that you have a good experience with our GL. We loved ours for the time that we had it. I'm disappointed that we are now in limbo regarding the car.
ericdi, I'm sorry to hear about your issues. I think that this issue is more common than MB wants owners to know. Keep us posted on the reliability.
We have asked for repurchase, but we'll see how that goes. We have not been impressed with the progress on that front, either. It will be unfortunate if this ends up going to the AG's office.
I'm at 6,000 miles on my GL350 and have yet to have a check engine light. It's had all winterized diesel so far, but I just filled up with no additive #2 diesel for the first time this weekend. I only have perhaps 25 miles on the summer diesel.
In terms of reliability, I put 115,000 miles on my 2007 GL450 and considered it a reliable car. It wasn't problem free, but probably had around 3 repairs over it's lifespan. I think the X164 models were in general pretty good. They have a lot of content so stuff will break.
The X164 CDI diesels had a few issues with bad gas, but seems like they have better filters in the bluetecs.
Keep us posted on the outcome.
We have asked for repurchase, but we'll see how that goes. We have not been impressed with the progress on that front, either. It will be unfortunate if this ends up going to the AG's office.
After reading online last night I don't buy it, I think this engine isn't suited for the fuels we have in the USA and the problem is fuel. The first instance was late summer and it was in the 80's, last week it was in the 50's, today our high is under 30 degrees, so I don't know if temperature is a factor.
They said a software upgrade is in the works, but it sounds like some were told that bad in April. We bought the car new in September from our local dealer. We have about 6600 mile on it now.
In the interest of being cautious, I think our MB Bluetecs seem to be more sensitive to fuel than most diesels. While I've never had a problem personally, there's been threads in the X164 and diesel forums about issues. The general consensus was to fill up at stations that have significant diesel traffic (avoids fuel in the tanks underground for extended periods of time and getting condensation build up). Also, while the impact of biodiesel isn't clear, some states have higher biodiesel percentages (Illinois is the biggest) than the 5% maximum our warranties require and it's worth investigating.
NO - there is not a 'rare" injector" problem - YES there is a rare-but-does-happen gas contamination problem - since gas pump nozzles now fit into diesel fill necks on vehicles.
Gas contamination my estimate overwhelmingly the cause here - and frankly since the dealer is lying or dealer staff is lying to the dealer - go Lemon Law right away.
The latest generation of Diesel engines are majorly overfuelling when cold to get the engines warm to reduce the emission levels. This makes your economy a joke and very much dependent on your journey type.
If you are doing short journeys where the engine never really gets warm this can lead to lots of problems.
I realise that in the US market Diesels are a relatively new thing so I offer this information so you don't get bitten.
The engine going into limp mode because it's not warm is entirely feasable with modern Diesels.
The DPF works by collecting the soot particles inside then 'burning' them off by getting really hot (over fuelling and over revving). If your car never gets hot enough to do this you can get serious problems - the older generation driving slowly suffered big!
If you do long journeys regularly you'll be fine, but the high mpg offered by these diesels doesn't come for free, so much so that people in Europe are starting to go off them.
If the US cars don't have a DPF then all of the above can be ignored.
Fast forward two weeks and two tank fill-ups, and a different injector needs to be replaced! So, the part is being expedited from Germany. At the first incident I was asked whether I was sure I put diesel and not gasoline. As this is my first diesel, I am overly aware at the pump as to what I am putting into the car. The second incident I was told that maybe I had bad diesel or perhaps the second injector was slightly damaged the first go-around, not caught, and eventually failed. Note that we had to go to a dealership where we were on vacation.
I have since looked online and saw that this has been an issue in 2010. However, I haven't seen anything since. I am now going to keep all of my "gas" receipts and keep a log as I don't want this to become an issue of bad fuel which I have read that damage related to bad fuel is not covered by warranty.
Anyone else having similar issues? Is biodiesel a factor? Thanks!
SAME EXACT THING happened to me. Took the car - which we lease- to MB for service and the same diagnosis but the second time they told us it's a software issue for which no software has been invented to fix the problem, so we are going on 3 weeks that our car has been in shop not counting the first time it went down. Looking to get out if our lease since the car has been inoperable more than operable since we've had it. Disappointing for such an expensive car. Not using biodiesel...and it's a 2014 diesel.
We have a GL350 too and now for the third time its at the dealer, all with a check engine light. The first one happened few months after we bought it then the last two times have been in the last month. There are about 12 k miles on the car now.
My biggest worry is if this puppy isn't reliable when this new how the heck can i feel good about its likely reliability post-warranty? I can imagine this will cost $500 + each time to fix.
Oregon's lemon law says the dealer gets three shots (or 30 days in the shop) so next time I'm going to have to have a discussion with them about options for resolution.
I hate to end up with a gas one but at a certain point you've got to have a car you believe in long term (I'd like to keep this puppy 10 years +)
Any others have success getting any clarity?
Thanks



