Daddyoftwo
Member
Hi
I have had my e350d cabriolet for a bit over a year and like it a lot except .... the mpg has been a disaster.
When I initially got it from the dealer I spoke to the previous owner who told me that he had part exchanged it because of the poor mpg.
I was struggling to get more than about 22mpg around town - often seeing 14.1mpg which was the minimum on the display - so it was often doing even worse. On a trip driving at 70mph on a motorway it was about 36mpg if I had feathers for feet.
I noticed that the temp guage went up to only 80°C so I tried to get the dealer to change it under their warranty as it's supposed to run at 95°C. They refused so eventually I paid to have it replaced by a Merc indie. Cost me a fortune. The old one had the rubber seal perished but couldn't get the money back on the Evans Halshaw guaranty (which had cost me £500) as they wouldn't answer the phone or reply to letters.
It now reached 95°C but economy was only marginally better. Due to not using the car much due to lockdown I had left it.
I just took it to get it TerraCleaned and the mechanic noticed that the cable hadn't been connected to the replacement thermostat.
Took it out for a short motorway run and got 59.6mpg. Driving around town got 32mpg.
Don't know how much is down the TerraClean and how much is down the thermostat being properly connected.
But what a difference.
I have had my e350d cabriolet for a bit over a year and like it a lot except .... the mpg has been a disaster.
When I initially got it from the dealer I spoke to the previous owner who told me that he had part exchanged it because of the poor mpg.
I was struggling to get more than about 22mpg around town - often seeing 14.1mpg which was the minimum on the display - so it was often doing even worse. On a trip driving at 70mph on a motorway it was about 36mpg if I had feathers for feet.
I noticed that the temp guage went up to only 80°C so I tried to get the dealer to change it under their warranty as it's supposed to run at 95°C. They refused so eventually I paid to have it replaced by a Merc indie. Cost me a fortune. The old one had the rubber seal perished but couldn't get the money back on the Evans Halshaw guaranty (which had cost me £500) as they wouldn't answer the phone or reply to letters.
It now reached 95°C but economy was only marginally better. Due to not using the car much due to lockdown I had left it.
I just took it to get it TerraCleaned and the mechanic noticed that the cable hadn't been connected to the replacement thermostat.
Took it out for a short motorway run and got 59.6mpg. Driving around town got 32mpg.
Don't know how much is down the TerraClean and how much is down the thermostat being properly connected.
But what a difference.
