Daimler warning to car owners of fire risk

[John]

May affect some members here:

Daimler warns car owners of fire risk it lacks parts to fix

The affected models are certain:
GLE/GLS (167 platform)
C-Class (205 platform)
E-Class (213 platform)
S-Class (222 platform)
S-Class (223 platform)
E-Class Coupe/Convertible (238 platform)
GLC (253 platform)
CLS (257 platform)
G-Class (463 platform)

 

[merc estate]

May affect some members here:

Daimler warns car owners of fire risk it lacks parts to fix

The affected models are certain:
GLE/GLS (167 platform)
C-Class (205 platform)
E-Class (213 platform)
S-Class (222 platform)
S-Class (223 platform)
E-Class Coupe/Convertible (238 platform)
GLC (253 platform)
CLS (257 platform)
G-Class (463 platform)

I wonder when we will be told about it over here

 

[markjay]

"It added in the letter that the parts needed to fix the problem were not immediately available so a recall was not possible at the moment, but would be launched as soon as the components became available.

"In the meantime the affected vehicle should be driven in a particularly prudent manner and usage reduced to the bare minimum," the letter said."

Seriously....????

 

[Diesel Benz]

Some addition information from the Netherlands:

Mercedes warns of fire risk, but has no parts for repair | Car - Netherlands News Live

Mercedes warns 800,000 customers in a letter about a fire risk in their car due to a leaking coolant pump. However, the company has not launched a recall. Reason: Mercedes does not have the parts in house to repair the defect. This concerns a large number of diesel models of the brand, which...

netherlandsnewslive.com

Refers to OM654 and OM656 engines. Odd if a coolant leak can cause fire?

No letter in my country so far. Wife's 213 seems to be on the list, build date summer 2020. She's already driving only when necessary and I'd say carefully.

I have not renewed my TIPS subscription, would anyone with access tell more about the issue? Perhaps owners could check some symptoms if instructions were released.

 

[merc estate]

Some addition information from the Netherlands:

Mercedes warns of fire risk, but has no parts for repair | Car - Netherlands News Live

Mercedes warns 800,000 customers in a letter about a fire risk in their car due to a leaking coolant pump. However, the company has not launched a recall. Reason: Mercedes does not have the parts in house to repair the defect. This concerns a large number of diesel models of the brand, which...

netherlandsnewslive.com

Refers to OM654 and OM656 engines. Odd if a coolant leak can cause fire?

No letter in my country so far. Wife's 213 seems to be on the list, build date summer 2020. She's already driving only when necessary and I'd say carefully.

I have not renewed my TIPS subscription, would anyone with access tell more about the issue? Perhaps owners could check some symptoms if instructions were released.

Years Jan 2017 to Oct 2021

 

[RabT]

Anyone knows if the W205 C350e is impacted by this issue? (UK reg 66).

 

[markjay]

Anyone knows if the W205 C350e is impacted by this issue? (UK reg 66).

The C350e has a petrol engine, so if the issue is indeed limited to OM654 and OM656 (both are Diesel engines), then you car is not affected.

 

[markjay]

Some more technical details here:

Leaking coolant pumps: Daimler recalls hundreds of thousands of Mercedes models

Hundreds of thousands of Mercedes-Benz cars have to be repaired as a precaution because of a possible defect in the engine cooling system. GLE / GLS, C-Class, E-Class, S-Class, E-Class, GLC, CLS and G-Class with the diesel engines of the OM 654 and OM 656 series are affected. With these, the...

www.kiratas.com

"The pumps installed can be controlled in terms of their delivery rate. With a so-called demand control, their drive power can be reduced, which in turn should contribute to lowering consumption.

Another advantage of the internally interrupted coolant flow (the thermostat only depends on the radiator) is that the machine heats up more quickly, with additional advantages in terms of raw exhaust quality. The engine electronics use electrically operated control valves for this. Due to the defect, coolant can leak at the interface to the vacuum."

And also here:

800K Mercedes vehicles could be at risk of fire but there's no recall yet

According to Bild, the automaker doesn’t have the parts it needs to fix the problem and cannot start the recall.

uk.motor1.com

"Germany’s Bild newspaper first reported that hundreds of thousands of Mercedes cars built between January 2017 and October 2021 may have a leaking coolant pump. In rare cases, this could lead to extremely high temperatures, which increases drastically the risk of fire."

 

[RabT]

The C350e has a petrol engine, so if the issue is indeed limited to OM654 and OM656 (both are Diesel engines), then you car is not affected.

Thanks, I posted before reading article in full.
Headlines I came across did not specify this only impacts Diesel engines and I am planning a trip to Barcelona for Easter break hence my jumpy question...
Appreciate the reply.

 

[Stratman]

...............

Refers to OM654 and OM656 engines. Odd if a coolant leak can cause fire?

................

Not if whatever's no longer being cooled gets too hot

 

[Wearsthefoxhat]

Luckily no mention of the OM654 we have in our V class, ( 447)

 

[Diesel Benz]

Years Jan 2017 to Oct 2021

I actually had a wrong year, our build date is summer 2021 but still in that range.

 

[markjay]

I wonder how much coolant will the cooling system need to lose before things get too hot under the bonnet? And does the issue only affect those owners who initially ignore the 'coolant low' warning message, and then go on to ignore the 'engine overheating' warning message.....? I would expect the dash would look like a Christmas tree well before any fire starts...

 

[Diesel Benz]

Some more technical details here:

Leaking coolant pumps: Daimler recalls hundreds of thousands of Mercedes models

Hundreds of thousands of Mercedes-Benz cars have to be repaired as a precaution because of a possible defect in the engine cooling system. GLE / GLS, C-Class, E-Class, S-Class, E-Class, GLC, CLS and G-Class with the diesel engines of the OM 654 and OM 656 series are affected. With these, the...

www.kiratas.com

"The pumps installed can be controlled in terms of their delivery rate. With a so-called demand control, their drive power can be reduced, which in turn should contribute to lowering consumption.

Another advantage of the internally interrupted coolant flow (the thermostat only depends on the radiator) is that the machine heats up more quickly, with additional advantages in terms of raw exhaust quality. The engine electronics use electrically operated control valves for this. Due to the defect, coolant can leak at the interface to the vacuum."

cut

Some additional information there. I'm just lost with explanation, coolant can leak to the vacuum? Which vacuum, I guess not outer space.

I don't think it can be the engine getting hot from low coolant. The simple advice (that would not even need to be given) is to top up if the light comes on.

I have not read how the pump control actually works. I assume it is still mechanically driven but is there some sort of a "clutch" like radiator fans used to have before those changed to electric? This part would not be in contact with coolant then. Would it make the serpentine belt burn?

 

[markjay]

Some additional information there. I'm just lost with explanation, coolant can leak to the vacuum? Which vacuum, I guess not outer space.

I don't think it can be the engine getting hot from low coolant. The simple advice (that would not even need to be given) is to top up if the light comes on.

I have not read how the pump control actually works. I assume it is still mechanically driven but is there some sort of a "clutch" like radiator fans used to have before those changed to electric? This part would not be in contact with coolant then. Would it make the serpentine belt burn?

The photo is showing an electric connector, so assuming that this is indeed a photo of the offending pump, then the issue could be that the leak is causing some sort of an electric short-circuit perhaps.

I am guessing that Daimler just ordered 800,000 pumps from their pump supplier.... who supplied the faulty pumps in the first place, and will probably be footing much of the repairs bill (them ot their insurer).

 

[clk320x]

May affect some members here:

Daimler warns car owners of fire risk it lacks parts to fix

The affected models are certain:
GLE/GLS (167 platform)
C-Class (205 platform)
E-Class (213 platform)
S-Class (222 platform)
S-Class (223 platform)
E-Class Coupe/Convertible (238 platform)
GLC (253 platform)
CLS (257 platform)
G-Class (463 platform)

Can you imagine the outrage if this had been Tesla?

 

[optimusprime]

A built in self destruct now ,,, so what will they come up with next ..

 

[Petrol Pete]

 

[grober]

Some additional information there. I'm just lost with explanation, coolant can leak to the vacuum? Which vacuum, I guess not outer space.

I don't think it can be the engine getting hot from low coolant. The simple advice (that would not even need to be given) is to top up if the light comes on.

I have not read how the pump control actually works. I assume it is still mechanically driven but is there some sort of a "clutch" like radiator fans used to have before those changed to electric? This part would not be in contact with coolant then. Would it make the serpentine belt burn?

If its anything like the OM651 COOLANT pump its vacuum actuated but electrically switched [vacuum on and off] meaning it will be connected to the engine vacuum system which may in turn affect other components-its not clear from the picture

 

[arcton114]

I wonder how much coolant will the cooling system need to lose before things get too hot under the bonnet? And does the issue only affect those owners who initially ignore the 'coolant low' warning message, and then go on to ignore the 'engine overheating' warning message.....? I would expect the dash would look like a Christmas tree well before any fire starts...

That’s exactly what I thought, bound to be a few warning signs before the planets aligned and a fire broke out surely