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IBEX Member Date registered: Jan 2015 Location: Gulf Shores AL Vehicle(s): 1999 MB G320, 1999 MB E300TD Posts: 43 | 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Hello, I am having a problem with my 722.610 automatic transmission floor shifter. It Does not Switching to and through the Lower 4-3-2-1 Positions/Speeds. I can easily switch from P to R - N - and the D. The car is driving fine on D. I am usually never using the Lower 4-3-2-1 Speeds, but yesterday I tried to switch the floor shifter to 4 and could not do it - it did not want to move from the D position. I need it to work properly because I am planning on towing a trailer long distance. So I will greatly appreciate your help in this matter. I have 1999 G320 with W463.233 V6 engine and 722.610 automatic transmission. Thank you | ||
#236001 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | RE: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Most likely crud has fallen into the mechanism. It isn't that hard to take out and clean up. There is a screw that holds the wood surround in place that is accessed from the transfer case shifter hole. Then there is a spring clip that holds the shifter lever to the rod that goes to the transmission (under the truck). Get new grommets for both ends of that rod, I assure you they are trashed. A2029920010 Collared bushing for shifter rod At that point you can just unbolt and take it apart for cleaning. | ||
#236003 - in reply to #236001 | |||
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IBEX Member Date registered: Jan 2015 Location: Gulf Shores AL Vehicle(s): 1999 MB G320, 1999 MB E300TD Posts: 43 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Thank you so very much. Will work on it this weekend, and will post a result. | ||
#236009 - in reply to #236001 | |||
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hummermaniac88 Member Date registered: May 2014 Location: Montreal, Canada Vehicle(s): 1997 Mercedes G320 LWB (Japanases Market) Posts: 39 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Yes, that happened to me and very common on 722.6 shifters. They seize up on the mechanism. All you need to do is take out the shifter mechanism and give it a thorough clean and greasing. | ||
#236010 - in reply to #236001 | |||
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H1LM002G55 Expert Date registered: Mar 2010 Location: S Florida / Geneva / Jeddah Vehicle(s): 500 GE, G55, LM002, H1 Posts: 1796 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Sounds like a job for Kroil. http://www.kanolabs.com/ Edited by H1LM002G55 5/10/2017 10:37 PM | ||
#236012 - in reply to #236001 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds H1LM002G55 - 5/10/2017 6:52 PM Sounds like a job for Kroil. http://www.kanolabs.com/ Hardly. There are plastic bits and circuitry in there that might not take kindly to the aggressive solvents in Kroil or any un-stickum spray. This calls for disassembly, cleaning and re-assembly with silicone paste. | ||
#236015 - in reply to #236012 | |||
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H1LM002G55 Expert Date registered: Mar 2010 Location: S Florida / Geneva / Jeddah Vehicle(s): 500 GE, G55, LM002, H1 Posts: 1796 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds I stand corrected. Good to know! I thought it was all mechanical linkages! My mistake. | ||
#236016 - in reply to #236015 | |||
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IBEX Member Date registered: Jan 2015 Location: Gulf Shores AL Vehicle(s): 1999 MB G320, 1999 MB E300TD Posts: 43 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds I have ordered pars suggested by “AlanMcR” (thank you very much). It looks like they are going to arrive some time next week. Also I’ve been researching this online and on WIS, and according to WIS after removing and then reinstalling the floor shifter, there is going to be an error code, which has to be erased – “After installing the floor shift, read out and erase the fault code using the HHT refer to DM Chassis Volume 1 – Index 0.” I will post the process and progress when I will get to it… | ||
#236035 - in reply to #236001 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds As long as the ignition is off, you won't get any new codes from the swap. Most likely there are already codes there. These shifters frequently cause silent faults of: 018 Selector Lever Improbable 114 Sporadic Selector Lever Improbable The way the lever works is that only PRND is mechanically transmitted by the rod. 4321 is transmitted electrically with a digital pattern on several wires. There are only so many patterns that are valid, the rest trigger this error. When the contact plate gets dirty incorrect patterns get sent. This usually clears up by itself as the contacts self clean certain extent as the shifter is moved. | ||
#236036 - in reply to #236035 | |||
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IBEX Member Date registered: Jan 2015 Location: Gulf Shores AL Vehicle(s): 1999 MB G320, 1999 MB E300TD Posts: 43 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds Got it. Thanks again Alan! | ||
#236043 - in reply to #236001 | |||
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Otiswesty Administrator Date registered: Jun 2007 Location: Portland, Oregon Vehicle(s): 463.241, 461.213 Posts: 3013 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds My shifter started acting up around the same time. Early May. I thought it was temporally related to accidentally dumping most of a cup of coffee on the center console/shifter area a week or so earlier. Then the following week, I had problems with the trans not shifting out of 1st gear in D mode. Weird. Unfortunatly I was involved in an accident with the truck and am just getting it fixed up. I replaced the shifter console today, and the brand new shifter from the dealer is not shifting normally either. I noticed that the shifter comes with a new bushing installed and am thinking that my issues may be more related to the bushing at the transmission end of the shift rod. I have just spent an hour plus adjusting the shift rod without any improvement. Seems like it has some play at the trans end too. The electrical plugs on the shifter looked pretty clean and uncontaminated by the coffee spill. | ||
#236640 - in reply to #236001 | |||
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DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds otiswesty - 7/8/2017 2:15 AM My shifter started acting up around the same time. Early May. I thought it was temporally related to accidentally dumping most of a cup of coffee on the center console/shifter area a week or so earlier. Then the following week, I had problems with the trans not shifting out of 1st gear in D mode. Weird. Unfortunatly I was involved in an accident with the truck and am just getting it fixed up. I replaced the shifter console today, and the brand new shifter from the dealer is not shifting normally either. I noticed that the shifter comes with a new bushing installed and am thinking that my issues may be more related to the bushing at the transmission end of the shift rod. I have just spent an hour plus adjusting the shift rod without any improvement. Seems like it has some play at the trans end too. The electrical plugs on the shifter looked pretty clean and uncontaminated by the coffee spill. Any chance the electrical plug on the tranny is leaking and that ATF has wicked up the cable to the control unit? It's a known and common issue with the 722.6 5-speed. | ||
#236641 - in reply to #236640 | |||
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Otiswesty Administrator Date registered: Jun 2007 Location: Portland, Oregon Vehicle(s): 463.241, 461.213 Posts: 3013 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds I'm not sure where my 1999 G500 transmission control unit is. I thought the shifter was connected directly to the trans, electrically and mechanically. I don't see any weeping at the plug on the transmission body though. | ||
#236644 - in reply to #236640 | |||
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DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | Re: 722.610 Automatic Transmission Does not Switch to and through the Lower 4-3-2-1 Speeds otiswesty - 7/8/2017 1:02 PM I'm not sure where my 1999 G500 transmission control unit is. I thought the shifter was connected directly to the trans, electrically and mechanically. I don't see any weeping at the plug on the transmission body though. The TCU is #32 in the Apparatus Case under the hood. For my 2000 G500 the P/N is A.023.545.52.32. See attached. (TCU.jpg) Attachments ---------------- TCU.jpg (63KB - 21 downloads) | ||
#236645 - in reply to #236644 | |||
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