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R-Class (W251) 2006-Present: R320CDI, R350, R420CDI, R500

THINGS I DIDN'T KNOW ABOUT MY R CLASS

Old 05-28-2013, 07:26 PM
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2GR-FE from Hethel, 14 W246, 13 W251, 06 NC, 02 aerio sx
New to this forum. Recently purchased a brand new W251 recently.
Thanks for the tips guys!
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Old 08-24-2013, 05:31 AM
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R320 CDI
#2 & #3 work on my '07 R320.

Last edited by Dr. Jimmy; 08-24-2013 at 02:13 PM.
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Old 12-24-2013, 12:44 PM
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R500
I have the only Lemon 06 R500 then. New front airmatics, new AC compressor, new purge valve for the fuel system, new intelligent servo for the transmission, new AC control module, new AC blower assembly, and all in less than 90K miles/145KM.

Great vehicle when it is good but $4K in 60 days is not a good deal. No vehicle should have this many failures in this short of mileage that costs $72K.
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Old 12-29-2013, 11:30 AM
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2005 C240 2011 R350
Cruise Control does not work when ESP (Electronic Stability Control) is turned off!
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Old 01-29-2014, 12:36 PM
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2010 R350, 2006 C230 coupe
I discovered there was a headlamp washing system after 3 years accidentally and looked back to this theread to know how it was activated


I do like the features listed here. Not to many cars are wequipped like that


Heating steering wheel!


My record is as low as 7.8l/100 km in 14-16 C no wind weather at 120 km/hr on 2 hr hauls


As for the realiability, my Bluetech is a bit unreliable and disappointing for a 76 000$ car(with tax and options):


Check engine on broken heating element in Adblue tank 2000$ paid on goodwill by mercedes


Major oil leak on the oil-prestone heat exchanger in the central Vblock cavity. Incompatible silicon rubber gasket. 1500$ paid at 75% by mercedes on goodwill


Leaking cranshaft oil seal (really???crankshaft?) discovered 750$ paid at 75% by mercedes on goodwill


Charge port actuator gone (caused by oil leak from the intake seal) AND intake manifold (flappers supposedly jammed in carbon but they were not) 1200$ paid at 75% by mercedes on goowill


Same incompatible silicon rubber gasket in the intake-turbo inlet


Very painful air filter changes (very bad design) and fragile air filter boxes


Fragile thin plastic intake manifold (was cracked and broken since new)


Now leaky air spring back left (its been tolerable for the past year but now getting annoying)


After 20 000 km, the bottom of both front fenders were on bare rusted steel. Was never on gravel road! bad design! .Mercedes decline to do anything. Bought splash gards that actually protect the fenders and the bottom of the doors as well


All those repairs were required and troubleshooted by me (not dealer) and corroborated by the dealer
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Old 11-15-2015, 05:35 PM
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Canadian models come with pre-installed block heaters.
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Old 01-29-2016, 07:57 PM
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R350 Bluetec 4matic 2011 and..........hyundai elantra 2016........
there is a hidden bottle opener in the middle of the front cup holder !! first time even i see this on a car !!!!!
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Old 01-29-2016, 08:07 PM
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This is one of my favourite features. It goes well at the drive-thru beer stores.
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Old 02-01-2016, 07:31 PM
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R350 Bluetec 4matic 2011 and..........hyundai elantra 2016........
and the most special about it ( als then being in a car ) is that it's in a Familly oriented car !
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Old 06-16-2016, 03:30 PM
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2015 Audi S4, 1982 Fiat Spyder, 2010 R350
OK, I've driven it for 100k miles and just found something out. If one key is in the ignition and running the car, the other key is disabled. My wife was in it last week running the air while waiting for me and I tried to open the rear hatch with my key. No Go. My key would also not lock or unlock the doors. I guess this is a security feature.
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Old 06-16-2016, 11:41 PM
  #61  
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When in reverse, adjusting the passenger side mirror down to point at the curb will cause it to go to that position every time you put it in reverse.
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Old 08-15-2016, 06:09 PM
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How to oil change R500, year 2007 without dipstick to drain oil ? Is there plug to drain the oil ?
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Old 08-16-2016, 12:05 AM
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2002 C240 (W203) 2007 R500 (W251)
Originally Posted by LEXINGTON500 View Post
How to oil change R500, year 2007 without dipstick to drain oil ? Is there plug to drain the oil ?
I believe it's all done from the top .. ie. suction out the oil. Definately the oil filter is at the top of the engine (drivers side up front, quite easy to spot).
There is no oil drain plug at the bottom if i recall my checking on this myself a few months back.
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Old 01-22-2017, 06:54 PM
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R350, SEL 450, SL 450, C230
I love my newly purchased R350 2010 except that I am stuck with the roof rack and the cargo box on the top of it and this thing is crazy low on MPG so I have been paying almost 50 a week for gas lol and I switched from a GLK 250 which would give me MPG of almost 40 and even more on long hwy drives and this R 350 gives me about 20 and low 20s if I am lucky!

All that said, it has been a great car so far and I am very happy with the drive, the space you got and the safety features.
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Old 01-22-2017, 07:13 PM
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2005 C240 2011 R350
windshield wipers do not operate when hood is open!
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Old 04-06-2017, 12:21 AM
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2002 C240 (W203) 2007 R500 (W251)
completely new to me but there's a 'hidden' aux power socket under the glove box in the foot well, passenger side...
Hidden as it is bloody set quite far back and the only reason i found it was because i opened up the side panel fuse looking to fuse tap (installed a dashcam) and i didn't want wire running down into the centre console, and saw this socket ! ...
So now my dashcam/gps/rearview camera combo (works a treat btw) has power without me having cut up it's power cable or tap into a fuse
(ps.) ran the units power line along roof/window line and then under the rubber trim all the way down into the foot well. nothing showing.
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Old 04-21-2017, 11:44 AM
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1982 380SL 2010 R350 - Subaru Outback - Hemi Durango
I did not know that the R Class lives on.

The R Class is still being built. I almost choked on my coffee while driving through Indiana last week and saw a car carrier full of brand new black R class vehicles heading east. American General is building them for MB to sell in China because of the huge demand for large luxury wagons. http://www.amgeneral.com/our-product...es/commercial/

Check out the videos to see the assembly line.
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Old 08-19-2017, 02:36 PM
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R350
AMG Rims

Originally Posted by W203Ramos View Post
I guess we've gone OFF TOPIC on this thread. anyway just an update,
-The new 3.5 motor feels like a V8 while getting more MPG's
- the 2012 doesn't have the active curve bi xenons offered on the previous models.
- the airmativc on the 2012 seems to raise and lower the whole car instead of just the rear....at least that's what it feels like
- the new navigation system tell you current traffic conditions
-and lastly, the optional AMG rims look BAAADAAA$$$!!! on the R
But those rims have punctured or ripped three tires on my R350 over the years - usually from hitting a curb or something.
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Old 09-17-2017, 11:52 PM
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"THINGS I DIDN'T KNOW ABOUT MY R CLASS" ... and still don't know... How to change the damn brake light on my 2012 R350?!?!?!?! WTF?



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Old 09-18-2017, 08:51 AM
  #70  
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Originally Posted by neavissa View Post
"THINGS I DIDN'T KNOW ABOUT MY R CLASS" ... and still don't know... How to change the damn brake light on my 2012 R350?!?!?!?! WTF?


I think you have LED brake lights. In that case you might have to replace the whole assembly or solder in new LEDs.
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Old 09-18-2017, 01:14 PM
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Originally Posted by marc hanna View Post
I think you have LED brake lights. In that case you might have to replace the whole assembly or solder in new LEDs.
It is kind of a combo of "standard" light bulb and LED. On the left rear, the upper light (regular bulb) works, but the lower (LED) does not. On the right it is the opposite. So having to replace the whole assembly because some lights do not work seems over the top. But hey, it is MB were are talking here, ha ha.

That said, I am going to give MB a call and see what they say. However, I still do not get why I cannot even change the brake light. The upper one, the regular bulb. That makes no sense to me. The manual only shows how to change the reverse light bulb.

Thanks,

G

p.s. I found videos that show how to change the brake light bulb on older R-Classes, but not for a 2012. I guess they change the whole assembly?!
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Old 11-18-2017, 12:46 PM
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2012 R350 BlueTEC
Headlight cleaning system

TIL: headlights cleaning systems activates automatically every 10th windshield wash.
It was mentioned here before that to activate it you need to wash windshield 5 times, not sure if that works too


From 2012 R-class manual

Last edited by Yu Chem; 11-18-2017 at 12:48 PM. Reason: wording
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Old 01-15-2018, 10:13 PM
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Great thread! I just took delivery of my 2011 R350 tonight, in the snow. I can't wait to try some of these tricks. The salesman showed me the bottle opener in the divider first thing!
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Old 01-30-2018, 06:03 PM
  #74  
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Originally Posted by R350sadness View Post
But those rims have punctured or ripped three tires on my R350 over the years - usually from hitting a curb or something.
tip of the day...... REFRAIN FROM HITTING THE CURB.......doesn't matter what rims you have, you will damage the tire lol
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Old 02-14-2018, 12:29 AM
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Originally Posted by W203Ramos View Post
tip of the day...... REFRAIN FROM HITTING THE CURB.......doesn't matter what rims you have, you will damage the tire lol
That's one of those Captain Obvious tips for sure.
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