[s-cars] Interpretation of markings on 1.8t Coil Packs

[Dave Forgie]

I am helping Varon F. with his 1.8t coil pack temperature
investigation.
His coil packs from 034 don't seem to be marked. 
His new ones from the dealer are definitely "115 R"s.

I have two 115L coil packs from my "stash"  in my hands. 

The markings on them are:

VW AG   (okay their for Volkswagen Ltd.)
06B 905 115L (Part Number)
BAK  DE 53 (53 is in a square box)
BREMI 12496ESM  (So they were made by Bremi)
L1 D4BB 5 31/3  (I thought 31/3 was a date but see below)

The second one is the same except the "last" line is:

L1 3535 7 41/03 (okay, March 41st)

Anybody out there speak VWAG/Bremi?

Dave F.