You have not provided enough information to answer your question. To answer your question you need to provide the first 6 of the VIN. It will be 111024, 111025, 111026, or 111027. The separation for when a lock switched will be based on the chassis number for the particular model (based on the first 6 of the VIN). If you want to post the first 6 of the VIN I will look up the locks to see what chassis number was the boundary for locks, or you can do it your own damn self if you live in the United States and establish a free subscription to EPC (Mercedes Electronic Parts Catalog) at this URL:
https://epc.startekinfo.com/epc/home.jsp

Probably not. Lots of parts for the coupes are unique and they are rare as parts cars. The key codes for the door locks and the glove box are on the locks and easily accessible. You can look and see if the two door handles match for instance.

See above. I made the mistake of trying to solve your problem instead of giving you an answer to a question that I thought (and still think) is a useless question. Chassis break is based on VIN. First 6 of VIN are needed to give you an answer.

Thanks for the hateful insults and the merciless belittling over a simple question. I'll do that.

__________________
1968 230S Automatic, Elfenbein
1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss
1972 280SEL 4,5 Dunkelrot
1966 VW Type 34 "Grosser" Karmann-Ghia
1963 VW 1500 Variant Pearlweiss
1969 VW Variant Automatic, Perugruen
1971 VW Squareback Automatic, Clementine Orange
2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White
1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau.

Jeeze. I spent a bunch of time trying to help you with your problem. and you act like an ungrateful prat. That is hardly hateful.

It seems to me, many people contribute more than enough to help you.

You really are a gem.

Get MB card and you will know exactly if that car came with one or more keys.

__________________
1972 W108 280SE 4.5
1977 W116 450SEL
1981 E12 528i BMW

I see you edited your post where you called my simple question stupid, and insulted me more than once, insinuated I was a "lazy ass", etc. Now I wish I had quoted your original post for posterity.

I'm not an "ungrateful prat". I just don't expect to be belittled and insulted. I just wanted a simple answer to a simple question.

__________________
1968 230S Automatic, Elfenbein
1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss
1972 280SEL 4,5 Dunkelrot
1966 VW Type 34 "Grosser" Karmann-Ghia
1963 VW 1500 Variant Pearlweiss
1969 VW Variant Automatic, Perugruen
1971 VW Squareback Automatic, Clementine Orange
2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White
1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau.

Yes, I freely admit I do now come off looking like a complete jerk... since the post I was responding to has now been edited, if you noticed.

__________________
1968 230S Automatic, Elfenbein
1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss
1972 280SEL 4,5 Dunkelrot
1966 VW Type 34 "Grosser" Karmann-Ghia
1963 VW 1500 Variant Pearlweiss
1969 VW Variant Automatic, Perugruen
1971 VW Squareback Automatic, Clementine Orange
2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White
1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau.

Let's just agree to disagree on what you think.

The reply came before any editing. There are just so many examples to choose from...

So you're admitting that you edited the post that provoked my reply? In that case, I accept your most gracious apology, and hopefully you'll accept mine.

I just hope you can understand that I came in here to ask a simple question, e.g., if the August 1969 date for the W113 changeover to a single master key held true for all models, and if not, what that date might be?

I had a little time to deal with the car in question today, and, as I suspected and feared, every lock on it has a different number. Yay.

The reason for my original question was this: If all the locks are different, and none are original to the car, I have a used parts source from which I can likely get a matched lock set with key(s). Hence the original question: What date began a single master key on the W111? If I know this, I can then ask my source for all locks for a W111 with one single master key, OR leave the ignition as it is and get a matched set of door handles plus the trunk/ glovebox third key with matching locks.

Now does this make sense?

__________________
1968 230S Automatic, Elfenbein
1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss
1972 280SEL 4,5 Dunkelrot
1966 VW Type 34 "Grosser" Karmann-Ghia
1963 VW 1500 Variant Pearlweiss
1969 VW Variant Automatic, Perugruen
1971 VW Squareback Automatic, Clementine Orange
2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White
1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau.

Sure. I looked at my post and decided that calling your question stupid was not constructive, so I edited my post and removed the word stupid. Has nothing to do with anything you wrote.

And you were given the answer that it's based on VIN not date, and the easy solutions were to look at the data card and to look on the actual locks themselves for key code. And that the first 6 of the VIN were needed to find the change-over

Just curious - do the door handles match? I mean do both door handles have the same key code?

Don't forget the all-important matching keyed gas cap.
Yes, your question all makes sense now (sort of). It still depends on what your goal is.

If your goal is originality, then the data card would be good to check and see if all of your other locks with different keys are in fact the correct originals.

If the goal is to have a single-key car, then the actual change date doesn't matter - in many cases locks for a single key car and a 3 key car are interchangeable. So even if the car didn't originally have a single key system you could have one now.

A word of caution - A W111 coupe is more like a W108 than a W111 sedan. You may want a W108 lock set (of which I have a complete single key system for a 1968 W108 - gas cap, ignition, both doors, glove box, trunk).

If you have access to EPC you can find the chassis number break. If you don't, PM me your VIN and I'll try and get you the answer as to when the change occurred.

Just curious - why don't you want the datacard for the card?

Scott

Well, given the turn this thread has taken I don't know if this comment will be helpful or not, but....

I have always found that on keys cut on both sides this was only a matter of making the keys easier to use. I can remember when autos first came out with keys that were cut on both sides and it seemed like something that was long overdue. No more messing with the key in the dark or the rain; just find the right one and put it in the lock! At the time this was considered a very big deal by new car buyers since while most people could not understand why a dual piston master cylinder was important for your braking system everyone could understand how important it was to quickly unlock a door in the rain.

However, the internals of the lock did not change. There is still only one set of pins, and one entry path. The reality is that the locks did not change at all, only the way the keys were designed.

Now bear in mind that I am only talking about locks from the era of which we are speaking. I don't deal with locks much past 1988 since some changes were starting to be made to the internals of the lock cylinders and the keys.

I just call a locksmith to knock these keys out.

Fwiw, auto club provides I think something like $75 locksmith refunds

hi Scott:

Not one of the locks on this car matches any of the others.

I'll have to check on the locking gas cap. If memory serves, there isn't one.

The data card is impractical at this time because the owner travels extensively, and he will have to be the one to prove ownership and get the card.

The goal is to get all the locks working as they should have been- with wither one key or multiple keys, as the car was originally equipped... or as reasonably close to that as can be surmised from available research data.

This car will never be a correct Concours car. We're approaching it as a fun and reliable weekend driver. The same fellow has a 1971 Euro 3.5 stick shift sliding roof Coupe that we're pouring the effort and time into making 100% Concours.

__________________
1968 230S Automatic, Elfenbein
1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss
1972 280SEL 4,5 Dunkelrot
1966 VW Type 34 "Grosser" Karmann-Ghia
1963 VW 1500 Variant Pearlweiss
1969 VW Variant Automatic, Perugruen
1971 VW Squareback Automatic, Clementine Orange
2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White
1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau.

If you want to send me the VIN, I can let you know if it originally had one key or three, but I'm pretty sure you can go to one key even if it originally had 3.

Scott

Hi, need to have a pair of spare keys ( big ignition and the little for trunk glove and doors) anybody knows where to get blank templates to duplicate mines here in Agentina?

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Alex Rozzi
1967 250 SE
Buenos Aires, Argentina