Update: I received the replacement generic tumbler and it is indeed the simpler (non-sidewinder) style key. FWIW, they provide two keys.
Next step will be to temporarily install the generic tumbler and then bravely dismantle the original. D. On 10/23/21, David Bruckmann wrote: >Greetings, > >In case it is helpful for others, I'd like to relate my recent journey in >attempting to avert ignition tumbler failure on my '79 W116.120 (300SD). All >of the information below was confirmed with Tom Hanson at the Classic Centre. > >Ignition tumblers coded to the vehicle are no longer available for W116 >models. Fortunately, it is still possible to order a generic "service" >ignition tumbler with a key that is not coded to the vehicle. The "service" >tumbler may actually use a different style of key. My W116 has the so-called >"sidewinder" key, but Tom mentioned that the service tumblers probably use the >more conventional-style keys used in 107/114/115/123 models. And by the way, >ignition tumblers for 107, 108, 114 and 115 are also NLA, even as an uncoded >service part. Only the later 123 tumblers remain available. > >I also ordered two replacement keys that ARE coded to the vehicle. These are >still available, but under A2017600306 versus the original A0007600406, a fact >that my local dealer was unable to determine. > >My plan is to remove the existing ignition tumbler, replace with the service >tumbler, then dismantle the old part. Sounds like the failure is caused by >wear of the lock pins, which then protrude and cause the tumbler to lock in >the housing. So I will take a look for that and make adjustments before >cleaning, lubricating, and reassembling the tumbler. > >If I'm REALLY lucky, Tom is wrong and the "service" tumbler also uses a >sidewinder key. In that case, I will try to find a competent locksmith who can >modify the coding of the generic tumbler to match the vehicle keying. > >I posted on this (R107) thread: > >https://www.benzworld.org/threads/apparently-mb-no-longer-makes-the-ignition-tumblers-for-our-cars-so.2067042/page-4 > >where there's a useful link to >https://www.coolcatcorp.com/Mercedes/Lock190.html and this thread >https://forum.w116.org/mechanicals/modifying-w123-lock-cylinder-to-fit-w116/ >which give you an idea of the internal construction of the tumbler. > >Anyway, I'll keep you all posted as things progress. If anyone knows of a >competent automotive locksmith near San Francisco, please let me know! > >D. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
