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Mercedes recall for "urgent" ECU software upgrade.


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On 23/02/2020 at 17:22, SuperRed said:

Yesterday I received a letter from Mercedes saying my 2015 ML 250 needs an update on the ECU software. It says that the update will not affect the engine performance in any way, which is great. What worries me is the short statement that says if any damage to the engine is attributed to the software update it will be repaired free of charge!!

 

I am seriously thinking about not bothering.

Check with DVLA before ignoring recall. My 2014 ML250 had the recall for the emissions update listed on my car details as an outstanding safety recall, so there was no option for me other than to have it carried out. I would have preferred not to have bothered.  

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On 23/02/2020 at 17:22, SuperRed said:

Yesterday I received a letter from Mercedes saying my 2015 ML 250 needs an update on the ECU software. It says that the update will not affect the engine performance in any way, which is great. What worries me is the short statement that says if any damage to the engine is attributed to the software update it will be repaired free of charge!!

 

I am seriously thinking about not bothering.

DO NOT GET IT. Myself and thousands of other Mercedes diesel car owners are currently taking group legal action against Mercedes due to this ECU update that was in relation to their dieselgate software that affected cars from 2008-2016 including 250 cdi Diesel engines and blue tech engines. Basically my c-class was doing 50mpg mixed motoring and immediately after the update this time last year it dropped to 41mpg max.

Despite what the dealer may tell you it’s an option engine update and not part of a VOSA recall so there is literally no reason to get it done. The ins and outs are that it uses the EGR valve a lot more than stock which means the engine is effectively using dirtier air and thus less efficient burning hence higher mpg. Once the update is done it’s impossible to roll back without going in to a random garage for a custom remap.

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29 minutes ago, Pembssurfer said:

DO NOT GET IT. Myself and thousands of other Mercedes diesel car owners are currently taking group legal action against Mercedes due to this ECU update that was in relation to their dieselgate software that affected cars from 2008-2016 including 250 cdi Diesel engines and blue tech engines. Basically my c-class was doing 50mpg mixed motoring and immediately after the update this time last year it dropped to 41mpg max.

Despite what the dealer may tell you it’s an option engine update and not part of a VOSA recall so there is literally no reason to get it done. The ins and outs are that it uses the EGR valve a lot more than stock which means the engine is effectively using dirtier air and thus less efficient burning hence higher mpg. Once the update is done it’s impossible to roll back without going in to a random garage for a custom remap.

I am now confused.

 

You are taking legal action because you are not getting the same mpg after the update?

 

I was under the impression the legal action was for misleading information given by MB regarding emmissions

  • Haha 1

Trevor.

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I had to have my E Class cabriolet 3.0 BlueTec done when I had the towing relay activated, it is not possible to do one without the other. 

 

Prior to the update I got between 520 and 550 miles from a tank, since I have not managed more than 450. It also uses more Adblue, though I am not bothered about that, it is a minor cost anyway.

 

If you have any work done at a main dealer they will do the engine update automatically unless you instruct them not to. They cannot insist you have the update done despite what they might try and make you believe. Insist that the job sheet clearly states that the recall update is not to be done. 

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Mercedes E350 CDi AMG Cabriolet, Lunar Freelander 640EW Twin Axle @1700kg

********* Naughty Step Aficionado And Grand Collector Of Naughty Points *********

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19 hours ago, reluctant said:

I am now confused.

 

You are taking legal action because you are not getting the same mpg after the update?

 

I was under the impression the legal action was for misleading information given by MB regarding emmissions

It covers both the cheat device and subsequent lower market value of the vehicle as a direct result of the engine management update. The class action lawsuit in America was successful so the hope here  is that the same arguments can be used in the EU. It’s on a no win no fee basis currently but Mercedes are fighting it as the most common engine involved is found right across their European range including commercial vehicles. Time will tell, either way no matter what they tell you do not get this update!

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I dont know about the OP Mercedes specific update however on the VW situation I can tell you that I currently own a 1.6tdi golf 2011 as my daily work hack however it already had the emissions fix so I cant tell what it was like before however I can tell you it dpf regens about every 150 miles and I've recently had to replace a injector at considerable expense which I am told is a consequence of the fix. I'm also told the other three are probably going to fail soon since that's what they do once one goes.

 

My wife had until recently a 2011 passat cc tdi, nice car however that also had the fix done prior to purchase so I cant offer a before opinion. That car also cost me a fortune replacing the egr valve, cooler and all associated pipes which had blocked up. Again this is a consequence of the fix. Scared of more potential misery and sick of other issues the car had I chose to sell it while it was in good order. That car turned out to be the most unreliable car I have ever owned despite being one doctor previous owner then us with a full service history. 

 

In summary I would hold back on a update until you find out more. My issues since they were over 12m from the update had no good will from VW. It has massively put me off having another one VW product. Dare I say it until I purchased the golf and passat two year ago we privately owned Vauxhalls or I had Vauxhall company cars since 1997 and I've never ever broken down, other than routine servicing they have been perfectly reliable. Therefore we have gone back to the Griffin for the wife. Personally I will probably go back to a insignia myself however I am massively tempted by a E350 estate. I might need to do some homework!

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16 hours ago, smith100s said:

I dont know about the OP Mercedes specific update however on the VW situation I can tell you that I currently own a 1.6tdi golf 2011 as my daily work hack however it already had the emissions fix so I cant tell what it was like before however I can tell you it dpf regens about every 150 miles and I've recently had to replace a injector at considerable expense which I am told is a consequence of the fix. I'm also told the other three are probably going to fail soon since that's what they do once one goes.

 

My wife had until recently a 2011 passat cc tdi, nice car however that also had the fix done prior to purchase so I cant offer a before opinion. That car also cost me a fortune replacing the egr valve, cooler and all associated pipes which had blocked up. Again this is a consequence of the fix. Scared of more potential misery and sick of other issues the car had I chose to sell it while it was in good order. That car turned out to be the most unreliable car I have ever owned despite being one doctor previous owner then us with a full service history. 

 

In summary I would hold back on a update until you find out more. My issues since they were over 12m from the update had no good will from VW. It has massively put me off having another one VW product. Dare I say it until I purchased the golf and passat two year ago we privately owned Vauxhalls or I had Vauxhall company cars since 1997 and I've never ever broken down, other than routine servicing they have been perfectly reliable. Therefore we have gone back to the Griffin for the wife. Personally I will probably go back to a insignia myself however I am massively tempted by a E350 estate. I might need to do some homework!

The E350 is a lovely car and that V6 diesel in estate form will hopefully be my next tow car. Thinking circa 2017.

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1 hour ago, Pembssurfer said:

The E350 is a lovely car and that V6 diesel in estate form will hopefully be my next tow car. Thinking circa 2017.

Couldn't agree more, ticks every box for me. 

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Well from the comments on here I have decided to not have the update done, just too risky for no gain as I see it.

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Coachman VIP 575. Mercedes ML 250 auto, One wife, three kids, five Grandkids.

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2 hours ago, Pembssurfer said:

The E350 is a lovely car and that V6 diesel in estate form will hopefully be my next tow car. Thinking circa 2017.

I had one from new in 2011 and didnt really like the towing characteristics with the air suspension. The problem for me was that I could easily forget I was towing as I couldnt feel that I had the caravan behind. With the power available I was at times bowling along blissfully unaware that I was towing. I changed the E350 to an SUV without the air suspension. Other than that the E350 was a lovely car to drive.

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1 hour ago, Nilrem said:

I had one from new in 2011 and didnt really like the towing characteristics with the air suspension. The problem for me was that I could easily forget I was towing as I couldnt feel that I had the caravan behind. With the power available I was at times bowling along blissfully unaware that I was towing. I changed the E350 to an SUV without the air suspension. Other than that the E350 was a lovely car to drive.

Iv been wanting the 350 engine on either the c-class or e class for some time now but with my C-class now doing the same mpg (post update) as the V6 E-class I can see that change happening sooner rather than later.

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Hi, I made the software update on my ML 250 bluetec from 2015. After update it is not pulling up like before. I wished to not did it.

 

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On 13/08/2020 at 09:06, Bookman said:

Check with DVLA before ignoring recall. My 2014 ML250 had the recall for the emissions update listed on my car details as an outstanding safety recall, so there was no option for me other than to have it carried out. I would have preferred not to have bothered.  

Rubbish. You do not have to get it done. 

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I had this update done on my E350 a few months ago and like others was wary, having read of reduced power and mpg and changed characteristics of the auto gearbox, suggesting that the car would not get in to 9th gear at legal road speeds.  I have a Mercedes service plan for the car and I knew the update would be done anyway next time it was in for a service, so I went ahead anyway.  I can't say I have noticed any great difference.  The car still does an average of just over 40mpg, no noticeable difference in power, and it still hits 9th gear at about 60 mph on a level road.  Recently been on a few trips with the caravan, still a great tow car, even though the mpg takes a bit of a hit, down to about 24.

 

When it was in for the update they changed both NOx sensors free of charge.  They have been a known problem with Mercs and I have heard of people being charged in the region of £1200 for replacement.  A friend of mine was charged about £600 for replacement of one sensor, and when I told him about my experience he contacted Mercedes, who agreed to refund the cost.

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fwiw ..

2013 MB ML 250 (5 years much enjoyed ownership so far & very pleased)

Have read nothing but mainly negative reports about the update / re-map so have ignored re-call - that is apart from the post from PeteG .

I use a long standing very smart MB specialist for routine service & MOT (coffee £1 & fair but labour rate £90 p/hour less than MB dealer !). They do not & can not do the re-map so no issue.

I do continue with a MB Tier One extended warranty so have to use MB dealers if any issues but if so will insist on no re-map.

MB Group action. Having read the small print (yes I did !) of one of the many, apart from the 35% / 50% of the win for legals, decided against joining in as did not like the bit about 'if we lose the action & MB are awarded costs' - 'the group will be liable to share the claim for costs albeit partially insured'.  After the rosy headlines it just sounded too grey an area for me so declined.

VW Group action. My pal's son joined into a VW group action (to win many thousands back he hoped) but he said that they got nil back and his fizzled out  - is this right ?? 

Regards M

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