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Discussion Starter #1
Hi All,

Our GLC 250d is due to arrive in April (very excited!)

A colleague of mine suggested to look into installing a plug-n-play diesel tuning chip to increase the power and improve more on fuel economy. has anyone had any experience regarding this?

I am basing on his experience with his A250.


Regards,
ej
 

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Hi ejuan, I personally would avoid this at all costs ! I have seen perfectly good, reliable diesel engines destroyed in a short space of time due to overfuelling and overboosting by the chip/overwrite. I would be surprised if you find the 250 lacking in power as I currently have the same engine in my M Class, and that boogies along just fine. In the lighter GLC with the new 9 speed box it'll be brisk enough. I went for a 220 as it's roughly got the same performance as my current M.

Any modification to the fueling/mapping will be picked up by the ECU, don't be fooled by any advertising to the contrary, and will invalidate your warranty instantly... It's your choice ultimately, but I advise caution.
 

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Hi ejuan, I personally would avoid this at all costs ! I have seen perfectly good, reliable diesel engines destroyed in a short space of time due to overfuelling and overboosting by the chip/overwrite. I would be surprised if you find the 250 lacking in power as I currently have the same engine in my M Class, and that boogies along just fine. In the lighter GLC with the new 9 speed box it'll be brisk enough. I went for a 220 as it's roughly got the same performance as my current M.

Any modification to the fueling/mapping will be picked up by the ECU, don't be fooled by any advertising to the contrary, and will invalidate your warranty instantly... It's your choice ultimately, but I advise caution.
IMO, Car manufacturers MOST likely knew what's best for technology... Any add-on or after market products add very little in helping its performance
 

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That's so true especially since the whole car is fine tuned so everything is synchronized. A good example is what sound engineer's do to cabin of a high end sedan like the Mercedes Maybach. Try getting your local audio shop to setup something as clean sounding... good luck. Nothing can replace all those resources.
 

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Discussion Starter #5
Hi All,

Thanks for the advice. Much appreciated!

Although i have been doing some extensive reading on these type of chips, but there's no pages in the web that has done a thorough and honest review.

I did a test drive before i bought the GLC and i found it very smooth and resposnive - hence why i've put in an order. I guess i am being greedy and want to squeeze more power out of it.

Regards,
ej
 

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Enjoy the new GLC when it arrives, I'm about two weeks away from mine & the wife's arrives on Friday this week !
Hopefully you guys have started to think about accessories you'll need and even the first steps of ownership like getting paint protection done, etc.
 

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Yes, we've ordered 2 x sets of mats, 2 x boot liners and both our cars are getting the 'Star Guard' polymer sealant treatment. After that I'll save my pennies up for some more 'capable' tyres for the winter.
 

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Glad to see you guys have thought ahead which is always the best thing to do with new vehicles such as these.

Are you going to do oil changes at the dealership or have your own independent shop you go to?
 

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Are you going to do oil changes at the dealership or have your own independent shop you go to?
As we are leasing them they must have all service work over the three years carried out by Mercedes Benz. It removes any hassle, but it's not the cheapest option... Luckly, our local dealer does a rewards scheme and you can call in for a free interior valet, an external wash, free screenwash & tyre checks throughout the ownership of the vehicle. It's not a huge reward but you can drop your filthy vehicle off, wander around the nice glss showroom drinking coffee and looking at all the new Merc's !
 

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slight downside indeed, at least you'll be getting good value out of your money by going to them as i'm sure as more people come on here you'll hear of stories where some people get far less for their money.

but make sure to keep us posted on how that goes

some of these dealers keep fresh food for customers, once I seen a dealer setup a salad bar!
 
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