What is spark plug torque for year 2000 430CLK Cabriolet ?
What is the spark plug gap for a year 2000 430CLK Cabriolet

Did forums search, and found some ambiguous info.

Spark plugs(All Engines) - 28 N.m
Spark plugs(Engine 113.987/ 990/ 991) - 25 N.m

I'm sure the intent was well founded, but I don't get it, states "all engines", then seems to ID 3 other engines.

Need help clarifying this.
1. So, what is it, 28 or 25 ?
2. What is the numerical ID for my engine, ie. 113.987, or what ?
3. What is the torque setting for my plugs ?

Would really appreciate some help, since I am waiting for a response so that I don't have to walk to work tomorrow.

Thanks.