W216 CL500 (4.7L) Remap question

OP
Will Barber

Will Barber

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Jan 25, 2010
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Cheshire
Your Mercedes
2012 CL500 (4.7L M278)
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If you can't handle 500+ bhp, don't worry we won't hold that against you :D

Look, I drive 600+ bhp vehicles every day and I just know that I will enjoy the drive more once it's been remapped. That's what it's all about, personal preference.
 

John Laidlaw

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Wirral
Your Mercedes
Land Rover Discovery 4
My thoughts entirely - with increased power with a good map comes usable smooth power curve, smoother ride and delivery and of course a fun factor...
Who can’t use more of that ?
 

houseboss2

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Leicestershire
Your Mercedes
CL500 09/09 (2010 my M273 Engine) Now completed 40K Palladium/Black
I guess your right.

I have never attempted to handle 500+ BHP for two reasons.

1. Never driven a car with that power.

2. Never been in a situation that needed it, or observed it on a UK road, as far as I know.

Nevertheless, Good luck with the power increase.

Michael
 

bembo449

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gainsborough , lincolnshire
Your Mercedes
Mercedes Cl500, shitron dispatch
The OP's car is a modern Mercedes "S" class coupe costing circa £100k.

The expert car reviews, of which there are many, extol all of the above. Indeed they are the main USP of the car for marketing purposes.

Smooth, sharp, ease of driving, relaxing are often quoted, together with average fuel economy being 29 mpg.

The difference after mappng must be marginal, apart from the knowledge of increased BHP and Torque, which I do understand must make a difference, mainly to speed and acceleration which doesn't seem necessary on this car!

I feel it is a bit "Emperor's new clothes"


have you ever had a car remapped pal ?
 

vinotraveller

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Mercedes Benz CL500, 2014, 4.7l V8
I just saw this thread and wonder if the OP did the remap in the end? And if yes what his experiences were.

I had my 35,000 mile 2014 Mercedes CL500 4.7 Biturbo remapped a month ago taking it from 430BHP to 510BHP and improving torque too. I had not planned on doing it but I had asked my local independent Mercedes specialist to remove the speed limiter when it was with them for some suspension work and new coil packs (as I will be using the car in Germany for a couple of weeks) and they offered to do the remap at the same time as the techinician they were using had suggested it. My vehicle is a "garage queen" and I only do around 1000 dry miles per year and have the car off the road between late November and March or April. This year of course I'll be putting more miles on with the 1500 - 2000 miles round trip to Germany.

I reluctantly said yes (my days of modifiying cars are long behind me), as I was intrigued to see what difference it might make.

My general impression is that when driving on the motorway (in ECO mode) the extra torque means a very gentle dab of the throttle takes me from say 65 to 75 or 80mph very swiftly, wheras before the remap I needed to press the pedal a bit harder and would then take-off and end up hitting 100 if not careful. It is therfore a bit more driveable for our busy motorways and overtaking is a less dramatic affair.

In terms of flat-out acceleration in sport mode from a low speed to well over 100mph my laymen's description is that it has changed from "exhilirating" to a slightly too uncomfortable a level of G-Force for my middle aged brain to cope with. A sensation I have only felt before when driving a Lamborghini Aventador (the only car I have ever felt carsick in whilst driving it!). I have no plans to put it on a rolling road and get proper figures and I'm not that bothered, and generally I drive fairly sedately these days.

I do think it is worth doing for making the car more drivable at legal motorway speeds due to the better throttle response. If safe dry weather and traffic conditions permit, I will open the throttle up on unrestricted sections of the autobahn to see what speed can be achieved now the limiter is off.
 
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