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ML320 - turn the key and the engine won't turn

Thanks to all you folks that help out on this forum. You guys are all great - sorry for the many posts, but wanted to keep suggestions separate.

My '98 ML320 does this weird thing sometimes. I turn the key in the ignition and the engine "blips" for a tenth of a second and then won't start. Sounds like it wants to, but no. I end up locking the doors electronically (with the key), then unlocking them, reinserting the key and try again - usually works 2nd time sometimes 3rd time. Any thoughts on this? I replaced my batteries in the keys and it still does it.

Thanks in advance for taking the time to read this.
Bart

RE: ML320 - turn the key and the engine won't turn

Quote:

I turn the key in the ignition and the engine "blips" for a tenth of a second and then won't start.

So you think your key is preventing you from starting your car? Maybe because since your key uses an anti-theft system that may be the issue. The vehicle has to recognize the key using infra red, electronically...something like that and maybe it's not the key, but the reciever. ?

Having the same problem. My engine blips a couple times but won't start. Did you ever solve the problem?