Could these be related?

BillyBoy

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W213 E400d All Terrain
A while ago I posted about occasional poor fuel economy, and suggested it could be active regen on the DPF. Several others also suggested this could be the case, however in the last couple of weeks, the car has been prompting me to add oil the next time I fill with fuel, and checking on the dashboard, it is at the minimum level.

The car is 11 months old, and has done 7,000 miles. I'm working on the assumption that is left the factory filled to the correct level, so 1 litre of oil in 7,000 miles seems a lot! Assuming there is not a leak (which I will get them to check), that means it is burning oil, and could that therefore be contaminating the DPF with soot? My driving is mostly a 30 mile each way commute, so I'd expect passive rather than active regen for this.
 

Blobcat

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R171 SLK280, Smart R451, Land Rover 110 County SW, 997 C2S, R1250 GSA TE 40th, CBR600FP
1ltr of oil per 1,000 miles is excessive but well within tolerances according to some manufacturers... :eek:
Yours is higher than any that I’ve had but not unduly so with a new engine. I’ve known Nissans and Saabs unsung much much more
 
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BillyBoy

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Agreed it's within tolerance, but seems odd and none of my previous Benz's have used oil between services including the GL which had 250,000 miles on the clock.
 

Blobcat

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Agreed it's within tolerance, but seems odd and none of my previous Benz's have used oil between services including the GL which had 250,000 miles on the clock.
They can do to start with, my e220d W213 used ~1tr before it’s first service ~15K miles.
 

mattkh

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The car is 11 months old, and has done 7,000 miles. I'm working on the assumption that is left the factory filled to the correct level, so 1 litre of oil in 7,000 miles seems a lot!
1 litre in seven thousand miles is fine.
 

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