I didn't know you didn't have to hold the key down in the start position until the engine starts. After reading the manual, I flicked the key to the start position and simply let go and it cranks by itself until the engine fires!!! Cool!! All this time, i've been doing it the conventional way. You guys?

 

MB AMG,
What models is this a function of ?
Thanks,
Horse.

 

I had no idea about this feature, but I just tried it on my 2001 E 430 and it works great!

 

It's on a lot of newer cars so it doesn't keep on cranking.

 

I'm pretty sure it only works for cars with the smart key. Hmm, 98+?

 

My 98 E320 does this as well. The dealer showed me this when we did the walk through after I bought it. I know it is nothing major, but it is just one of those small features that I love about my car.

Eagle

 

smart key? u mean the keys that the infrared tip?

 

Yup, not the switch blade mechanical key.

 

did they ever discontinue that key...and then go back to it on ltr cars?

 

I think this features is officially called "Touch Start" - and is no doubt some distant ancestor to "keyless go". Unfortunately on my 1999 E300 TurboD, I still need to wait for the glowplugs....but the touch start feature works after the light goes out.

Some of the earlier 80s MB Diesels had specific instructions to encourage you to "hold the key against the starter position until the engine fires smoothly and evenly" which sometimes meant running the starter for maybe 15 seconds or so in the dead of winter.
Still never replaced the starter in father's 1982 300SD.

 

Hehe, touch start. Can you tell me what the glowplugs are for and why you need to wait for the light to go out before you can start the car?

It also says to "hold the key against the starter position until the engine fires smoothly" on MB gas engines (from what i've read in a W116 450SEL manual.)