ETOS/ETKA has a list of all the option codes
P 3AV exterior mirror aspherical wide angle, right, RHD
P 3BF exterior mirror heated convex, left, RHD
P 3NC seat and backrest divided
P C2K wheel disc 'alum' = bbbs / multi part = 6.5Jx15H2 ET33
P 8Q1 headlight range control
P 4LA seat and backrest cover, leather
P 3LE door and side trim panels for leather trim
not sure about this:
P E1T interior trim: grey / comb. no.:-52
P E1H interior trim: grey / comb. no.:-28
some other cool option codes:
P 4R1 windows lifter, electrically operated, front & rear
P 4R2 windows lifter, electrically operated, front
P 6PC handbrake lever grip (leather)
P 6Q2 gearstick knob (leather)
P 4A1 seat and backrest electrically heated left front
P 4A2 seat and backrest electrically heated right front
P 4A3 seat and backrest electrically heated front
P 4F1 sentral locking system
P 8GD alternator 90amp
P 8X1 headlight washer system