E250 Bluetec reliability & thoughts.
Just to make it clear, here are the listing pictures.
That was 6 months ago, before last price spike, but per my observation Bluetecs did not gain any value lately.
https://imgur.com/a/d4FpqkM
Dang, why couldn't i have seen this before you sold the car? Just what i was/am looking for, and priced right.
Obviously W212 where SCN coding applies makes stupid Nox sensors replacement a 4-digit job, but on older Bluetec O2 sensor was $120.
Talking about wise spend money. My friend paid $5000 more for his lower mileage GLK.
Now think 4 years/100k miles down the road.
You think 11 years old GLK with 130k miles will sell $5 k more than 9 years old GLE with 220k miles?
Don't think so.
also-- looking one to buy-- I know the $$$ back for doing AEM has expired... If I buy one w/o the AEM-- and get the AEM work done in 2023-- do I still received the 48 month/ 48,000 mile extended warranty from time of AEM Update??
Are AEM updated cars having many issues/ Post AEM Mod???
thanks
And
If done in 2023... no cash
But still get full aem warranty once aem update is completed?
How long does mod take... and what if local MD dealer cries they can't get parts b4 2023??




AEM depends on the model is from 2 hr to 8 hr job, but dealers reportable use AEM to fill up holes in the schedule, so they keep the vehicles for 3 days or even longer.
If you get there, ask for a loaner.
Can you really find a Bluetec who did not have AEM done? The only ones I heard about are those who have deletes, what opens whole can of worms
Last edited by kajtek1; Dec 11, 2022 at 12:52 PM.




Anybody knows when sedans with those engines will hit US market?
I love my E250 and that would be the only trade I'd consider.
AEM depends on the model is from 2 hr to 8 hr job, but dealers reportable use AEM to fill up holes in the schedule, so they keep the vehicles for 3 days or even longer.
If you get there, ask for a loaner.
Can you really find a Bluetec who did not have AEM done? The only ones I heard about are those who have deletes, what opens whole can of worms
Is this bluetec gonna b reliable... headache free with this 4 year warranty... I have test drven a few of the e250s... really nice comfortable power efficiency.
The Best of Mercedes & AMG
Any Known wiring issues w/ w212 Bluetec? I keep reading ONLY worries are related to DPF/ And related Nox/O2 sensors... I won't have to worry for 48 months
BUT- I do NOT want self destructing wiring issues in the future ( like this darn CDI)
thx




Any Known wiring issues w/ w212 Bluetec? I keep reading ONLY worries are related to DPF/ And related Nox/O2 sensors... I won't have to worry for 48 months
BUT- I do NOT want self destructing wiring issues in the future ( like this darn CDI)
thx
I had 3 of them and the last one sold to a neighbor, so keep in touch. He had accident but restored the car with well over 200k miles.
W212 are compared to legendary W123 in reliability. I am talking diesels.
I had 3 of them and the last one sold to a neighbor, so keep in touch. He had accident but restored the car with well over 200k miles.
W212 are compared to legendary W123 in reliability. I am talking diesels.
What do u think is a fair price for 2014 Bluetec awd w 45k on clock... clean ( and considering $3k back when I AEM it??
Thanks again




I don't pay much attention to mileage on diesel.
45 k, 145k, or 245k, I am not going to wear the engine in my life anyway.
What I pay big attention to is paint. Was the car garaged? Is clear coat in perfect condition?
Some w212 do have issues with seat covers, so that would be something to check.
I don't pay much attention to mileage on diesel.
45 k, 145k, or 245k, I am not going to wear the engine in my life anyway.
What I pay big attention to is paint. Was the car garaged? Is clear coat in perfect condition?
Some w212 do have issues with seat covers, so that would be something to check.




Now no more soot, when I don't see any difference in performance.
Than some spend money on marijuana....
Now no more soot, when I don't see any difference in performance.
Than some spend money on marijuana....
I read this could have a lot of negative effects On the BT om651 - motor and DPF system... what are your thoughts on this?
I have tried searching For B5 or less - around where I live... kinda hard to find... almost ALL stations just label UP TO 20% Bio
thx




It is Michigan, who has only B20 for summer and MB owners filling up there report that filling up B20 doesn't have immediate effect, only on long run fuel system needs cleaning.
Bare in mind that even in city driving, you will get about 700 miles on the tank, so you can fill up at your convenience, not necessary running scared.
Once you learn the stations, it is not a big deal to top it off when you are near.
For driving into areas with very expensive fuel, I just drop spare can in the trunk. That happens when we go to San Francisco. With spare can we can make 1300 miles trip without paying high California prices.
Very often the can is "mental spare". The car can make well over 100 miles with reserve light on, but even with my good nerves, I don't feel comfortable making more than 70. Spare can in the trunk lets you keep going without shaking hands.
It is Michigan, who has only B20 for summer and MB owners filling up there report that filling up B20 doesn't have immediate effect, only on long run fuel system needs cleaning.
Bare in mind that even in city driving, you will get about 700 miles on the tank, so you can fill up at your convenience, not necessary running scared.
Once you learn the stations, it is not a big deal to top it off when you are near.
For driving into areas with very expensive fuel, I just drop spare can in the trunk. That happens when we go to San Francisco. With spare can we can make 1300 miles trip without paying high California prices.
Very often the can is "mental spare". The car can make well over 100 miles with reserve light on, but even with my good nerves, I don't feel comfortable making more than 70. Spare can in the trunk lets you keep going without shaking hands.
so just speculating... that most /majority use 11Percent or more... On top of that --I live in the Corn fields... where there are far fewer choices.
Most diesel around me says-- "Up to 20% Bio" which is pretty darn vague
I just dont want o buy this car and be replacing sesnors/DPF every 5-6 years... bcuz of crappy B20
It is Michigan, who has only B20 for summer and MB owners filling up there report that filling up B20 doesn't have immediate effect, only on long run fuel system needs cleaning.
Bare in mind that even in city driving, you will get about 700 miles on the tank, so you can fill up at your convenience, not necessary running scared.
Once you learn the stations, it is not a big deal to top it off when you are near.
For driving into areas with very expensive fuel, I just drop spare can in the trunk. That happens when we go to San Francisco. With spare can we can make 1300 miles trip without paying high California prices.
Very often the can is "mental spare". The car can make well over 100 miles with reserve light on, but even with my good nerves, I don't feel comfortable making more than 70. Spare can in the trunk lets you keep going without shaking hands.

I read this could have a lot of negative effects On the BT om651 - motor and DPF system... what are your thoughts on this?
I have tried searching For B5 or less - around where I live... kinda hard to find... almost ALL stations just label UP TO 20% Bio
thx
Yes the trans can be and should be oil changed and filter changed. There are good videos which I will have to link. Think the recommended is 60 or 80k miles. Ive gotta do mine over christmas break. Actually no sealed components on MB but gotta finangle the front axle/case (sorry forgot name). Ya have to pump measured fluid in then replace drain plug real quick as it doesnt have a fill plug.
Hope that helps.

https://mbworld.org/forums/diesel-fo...c4-new-me.html
Good info.
Oh and my car apparently ran the .51 spec 5w40 up until I did the first oil change after buying it when I put in the .52 5w30. Will probably go back to the other oil as there wasnt any issues with it up until I got it. Anyhow oil is a whole ball of wax thats not worth getting into for this. Change often and good to go.
Last edited by Quint22; Dec 14, 2022 at 10:57 PM.
AEM depends on the model is from 2 hr to 8 hr job, but dealers reportable use AEM to fill up holes in the schedule, so they keep the vehicles for 3 days or even longer.
If you get there, ask for a loaner.
Can you really find a Bluetec who did not have AEM done? The only ones I heard about are those who have deletes, what opens whole can of worms
Can You send or show me a link to that -- for Proof/confirmation? I don't want to buy this car --Unless I can get the $3500 back
Thanks!!!



