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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | RE: 463 with larger tires - ESP problems solved the size I am using currently, 295/75R16, rubbed in the upper rear fender wells used spring spacers to remedy that used the same spacers also for the front to keep the vehicle balanced in the front the tires rub on the leading arms and on the steering box pitman arm only wheel spacers (or a different ET) will cure that I decided against it and therefore have to avoid hard left or right | ||
#224448 - in reply to #224439 | |||
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traveller09 Member Date registered: Feb 2012 Location: Renton, WA Vehicle(s): 95 911, 08 Volvo S60 T5, 2005 G500 Posts: 29 | RE: 463 with larger tires - ESP problems solved Hi guys, My rig is in the shop overnight and my MB dealer is willing to make the changes to the computer for me, but they are at a loss as to what to change the settings to. I went with Duratrac 275/70 R18 and of course there is no tire setting for that size. I searched the forum and this tread seemed to fit the bill. I believe I now have 33's on there? Which would indicate a transmission setting of 4.857? What tire sized settings do I use for the odometer change, or keep it stock? Is it ok if they only change the transmission setting without the odometer changing?
Thanks in advance. David
From Haralds post: 5.286 gears would accomodate 35" to 36+" tires (U=2790 to 2870 mm) | ||
#225969 - in reply to #95283 | |||
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thebigblue Date registered: Jan 2012 Location: Vehicle(s): | RE: 463 with larger tires - ESP problems solved I´m on 285/65-18 and did not change anything, the speedometer is around 10% too low from factory, mine now is a few % below correct speed. Since the odometer is not 10% above from factory, I just know that my figures will be 10% to high, so I subtract 10% from fuel consumption etc. But it looks like the 4.857 setting will get things back to "normal" | ||
#225974 - in reply to #95283 | |||
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Balto Extreme Veteran Date registered: Mar 2012 Location: Scottsdale, AZ Vehicle(s): 2002 G500 Posts: 368 | Re: 463 with larger tires - ESP problems solved Just went with a set of 265/70R18 BFG KO2s and am going to take the G into my shop to get the calibration adjusted. Anyone have tips on what to tell them the settings should be? Thanks | ||
#230513 - in reply to #95283 | |||
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kotton Regular Date registered: Sep 2014 Location: California, Orange County Vehicle(s): 2006 G-500 Posts: 84 | Re: 463 with larger tires - ESP problems solved Balto - 12/2/2015 7:13 PM Just went with a set of 265/70R18 BFG KO2s and am going to take the G into my shop to get the calibration adjusted. Anyone have tips on what to tell them the settings should be? Thanks I just got the same tire mounted Monday but in 275/70/R18 with no rubbing on a stock G500 BTW for anyone reading this in the future. The way I've read through this thread is the new tire is 33.2" tall compared to the stock size of 30.5". Since 33.2 is 8.14% taller than the stock size I would have to look for some combo in the system close to that, which would either be 4.111 gears(+6.04%) plus 235/75/R17.5 (+2.87%) = 8.91% of total correction. Or not touching the gears and just selecting the 8.25R16C tire option, but im not exactly sure how to read that type of numeric sizing. From using my google fu it looks like its a around a 33" tire but I dont know for sure as some guys on the defender forums claim its a 34" tire. Balto in your case I would just have your shop choose the 4.111 gears which is a 6.04% increase that matches your 6.16% taller tires pretty well. Edited by kotton 12/2/2015 3:05 PM | ||
#230525 - in reply to #230513 | |||
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TD1 Member Date registered: Apr 2015 Location: Brooklyn, NY Vehicle(s): 2004 G500 // 97 Disco Posts: 22 | Re: 463 with larger tires - ESP problems solved Kotton- on those tires i rubbed at full right turn lock on the metal right next to the steering box. | ||
#230526 - in reply to #230525 | |||
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kotton Regular Date registered: Sep 2014 Location: California, Orange County Vehicle(s): 2006 G-500 Posts: 84 | Re: 463 with larger tires - ESP problems solved TD1 - 12/3/2015 1:52 PM Kotton- on those tires i rubbed at full right turn lock on the metal right next to the steering box. Its real close, but I have a good 1/4" to 1/2" of clearance at full lock. Its hard to snap a pic, but this at least shows the pitman arm clearance. ] | ||
#230528 - in reply to #230526 | |||
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Balto Extreme Veteran Date registered: Mar 2012 Location: Scottsdale, AZ Vehicle(s): 2002 G500 Posts: 368 | Re: 463 with larger tires - ESP problems solved Thanks man! That's exactly what I needed! | ||
#230543 - in reply to #95283 | |||
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kotton Regular Date registered: Sep 2014 Location: California, Orange County Vehicle(s): 2006 G-500 Posts: 84 | Re: 463 with larger tires - ESP problems solved Balto - 12/4/2015 1:34 PM Thanks man! That's exactly what I needed! I should say thats only if you have the normal 4.375 gears installed, so you should double check that when you go in. | ||
#230545 - in reply to #230543 | |||
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512bbi Expert Date registered: Jan 2007 Location: North western US and Europe Vehicle(s): 05G55kge,Range rover classic,clk55amg,ML 430 Posts: 1313 | RE: 463 with larger tires - ESP problems solved When I installed 10% higher profile tires on my g55k soon after I got it I experienced a noticeable difference on how much more lazy the esp had become if I provoked oversteer or understeer on a loose surface. Most of all, my electronic traction control (ETC) became a lot worse than stock size tires. When I adjusted the settings at an MB shop everything got a little better, but when later I purchased a star diagnosis system I had my mechanic adjust the settings to the max for the largest possible tires and the transmission module for the largest tire setting possible. Right away my esp went to almost better mode than stock and so did the ETC which now was working again at full flex and loose traction situations that I needed the lockers before I am sorry is too many years and I do not remember the numbers on the settings but I do remember if I went to the setting on trasmission module as if running largest possible tire like 35s so the trasmission module was adjusted for the tallest gears possible. With a diameter of 32.7 inches I do not touch anywhere with the stock amg wheels and 286-65-18s. I find that size ideal as I get full flex and steering with out the issues of only an additional third of an inch of rubber, and perfect function of electronics with esp and etc The e load rating revo 2s ride smooth,soft and handle on both pavement and all types of dirt ,rocks,snow ,ice and more with out any flats or balancing issues Set your speedo for 33s and your transmission module to the highest setting....it worked for me good enough I can slam corners at 75 and esp works fast and perfect as stock Mario | ||
#230547 - in reply to #95283 | |||
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kotton Regular Date registered: Sep 2014 Location: California, Orange County Vehicle(s): 2006 G-500 Posts: 84 | RE: 463 with larger tires - ESP problems solved 512bbi - 12/5/2015 3:34 AM When I installed 10% higher profile tires on my g55k soon after I got it I experienced a noticeable difference on how much more lazy the esp had become if I provoked oversteer or understeer on a loose surface. Most of all, my electronic traction control (ETC) became a lot worse than stock size tires. When I adjusted the settings at an MB shop everything got a little better, but when later I purchased a star diagnosis system I had my mechanic adjust the settings to the max for the largest possible tires and the transmission module for the largest tire setting possible. Right away my esp went to almost better mode than stock and so did the ETC which now was working again at full flex and loose traction situations that I needed the lockers before I am sorry is too many years and I do not remember the numbers on the settings but I do remember if I went to the setting on trasmission module as if running largest possible tire like 35s so the trasmission module was adjusted for the tallest gears possible. With a diameter of 32.7 inches I do not touch anywhere with the stock amg wheels and 286-65-18s. I find that size ideal as I get full flex and steering with out the issues of only an additional third of an inch of rubber, and perfect function of electronics with esp and etc The e load rating revo 2s ride smooth,soft and handle on both pavement and all types of dirt ,rocks,snow ,ice and more with out any flats or balancing issues Set your speedo for 33s and your transmission module to the highest setting....it worked for me good enough I can slam corners at 75 and esp works fast and perfect as stock Mario Where did you purchase your STAR system from? | ||
#230551 - in reply to #230547 | |||
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512bbi Expert Date registered: Jan 2007 Location: North western US and Europe Vehicle(s): 05G55kge,Range rover classic,clk55amg,ML 430 Posts: 1313 | RE: 463 with larger tires - ESP problems solved I have to look it up I do not remember their name It was from England with all the trimmings and it was not cheap Moderator G AMG gave me his blessing on it since I did not know who is what on this subject and my mechanic had no issues with it. I would ask him if you want an opinion you can count on Mario | ||
#230578 - in reply to #230551 | |||
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kotton Regular Date registered: Sep 2014 Location: California, Orange County Vehicle(s): 2006 G-500 Posts: 84 | Re: 463 with larger tires - ESP problems solved Thanks for the info 512. Does anyone remember where I need to go in order to change the speedometer settings to a larger tire size? Some threads I dug up in other forums suggest its in the NAV settings on the comand unit, but I'm unsure if that updates the speedometer or just the GPS unit. I'm taking out the comand soon anyway to install a new head unit, so I assume I'll have to set the speedometer another way anyway. | ||
#230805 - in reply to #230578 | |||
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512bbi Expert Date registered: Jan 2007 Location: North western US and Europe Vehicle(s): 05G55kge,Range rover classic,clk55amg,ML 430 Posts: 1313 | RE: 463 with larger tires - ESP problems solved I am nor sure since it has been years but I do remember that where the tire sizes where in there to choose from the largest diameter was a metric tire that would equal a 33 inch one,but setting the tire diameter would fix the speedo but will have no effect on the function of the esp and traction control. The transmission module section that lists different gear settings was the one that effected the function of electronics I do not know if they connect in function or not but when I changed the tire size only first the speedo worked accurately tested by GPS but that by it self had no effect on the workings of esp, when later we changed the settings on transmission module it all worked fine Mario | ||
#230810 - in reply to #95283 | |||
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8899 Member Date registered: Jan 2017 Location: Northern Virginia Vehicle(s): 1994 E500; 2003 W210 4Matic Wagon; 2008 G55 Posts: 14 | Re: 463 with larger tires - ESP problems solved I recently exchanged some emails with Darren at Collie regarding tire size options for my 2008 G55. He indicates that adjustment of tire size programming in STAR is not possible as it is "scn" coded and therefore to not change tire size beyond stock. This is unfortunate news since the stock tire size options are slim pickings. Has anyone else with a 2008 G55 been successful in moving to a 31" or 32" tire size??? | ||
#237072 - in reply to #95283 | |||
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thebigblue Date registered: Jan 2012 Location: Vehicle(s): | Re: 463 with larger tires - ESP problems solved I have moved from stock to 33" (285/65-18) with no issues. I have a 2005 that also don´t have the option to change tire-size in the settings. | ||
#237079 - in reply to #95283 | |||
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8899 Member Date registered: Jan 2017 Location: Northern Virginia Vehicle(s): 1994 E500; 2003 W210 4Matic Wagon; 2008 G55 Posts: 14 | Re: 463 with larger tires - ESP problems solved Just to update....I went ahead and bought a set of the stock G500 wheels (18" x 7.5" ET 43) and instead of mounting the stock tire size (265/60; 30"), I mounted 275/60 (31") Yokohama GEO AT G015 tires. No problems with ESP. First impression is that the tires are great...very quiet considering the AT tread design. I will run them until the spring at which time I will remount the stock G55 wheels and tires. | ||
#237176 - in reply to #95283 | |||
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Jesse Member Date registered: Aug 2017 Location: Massachusetts Vehicle(s): 2005 G55 Posts: 9 | Re: 463 with larger tires - ESP problems solved I know this thread is quite old, but the information is EXTREMELY helpful. Thank you to all those who contributed to the content. I am posting my experiences here in case it is useful to others. My vehicle is a 2005 G55 with stock suspension (as far as I know) I installed BFG AT KO2 265/70-18 tires on OEM G550 18" wheels. There no rubbing issues in normal driving lock to lock. I have done a few days of mild off roading (Class 4 roads in Vermont) and have not had any contact issues there either. My speedo was off and the truck was not shifting when it should. The most noticeable shifting issue was not downshifting when needed on long steady hills. So, with the help of this thread, I decided to make a few edits to the settings. My axle ratio was set to 4.111 and tire size was set to 265/60R18. When I compared the tire sizes, I needed to increase the tire size by roughly 10%. Unfortunately, in my 2005 G55, there were only a couple tire options. I decided on the following changes. In the VG (Transfer Case) section, under Read Coding and Change if Necessary, I set the tire size to 235/85R16 and the Axle Ratio to 4.375. That works out to be almost exactly 10%. I also set the tire size under Special Equipment in the Instrument Cluster section to the same 235/85R16 in order to fix the speedo. The speedo is now very close. It reads ~1MPH low at 65MPH. The shifting is now much smoother when accelerating and downshifts on the hills where I was manually downshifting in the past is very smooth. Acceleration also feels faster, although that could be mental. Thanks again for all those who have posted in this thread and especially to Harald and Karl for the screen shots and clarifying details that helped me figure this out. Thanks, - Jesse Edited by Jesse 1/3/2018 4:03 PM | ||
#238035 - in reply to #95283 | |||
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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | Re: 463 with larger tires - ESP problems solved happy to hear that it still works | ||
#238038 - in reply to #238035 | |||
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KeithG500 Member Date registered: Oct 2014 Location: Largo FL Vehicle(s): 2005 G500 Silver Posts: 25 | Re: 463 with larger tires - ESP problems solved Thanks everyone!!! Keith Edited by KeithG500 1/15/2018 5:34 PM | ||
#238112 - in reply to #238038 | |||
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