Lower-case letters
a fitted with Technikbasiertes Abfertigungsverfahren (TAV) - automatic driver-operated door-closing system.

b passenger car with wheelchair area and disabled persons toilet.

c couchette: compartment coach with folding bench seats which can be used as sleeping bunks.

d car with bicycle-carrying equipment or general purpose area.

f one of:
a) car with driving compartment for push-pull operation (with 36-way control cable and/or time multiplexer push-pull control).
b) car with driving compartment for push-pull operation (with 34-way control cable and/or time multiplexer push-pull control). Used with letter u.

g double-deck car exceeding normal loading gauge. Code not now in general use.

h one of:
a) passenger car with electric appliances that can be supplied with energy both from axle generators and from the train power cable. If hauled by electric or diesel locomotives with electrical power supply, the train power cable is to be set to tension. The kind of power supply for the heating or air conditioning system - single voltage, multi-voltage or steam - determines the employment of the cars on electrified and non-electrified routes.
b) local train coaches with central aisle of the Deutsche Reichsbahn type.

i Inter-Regio coach. Used with letter m.

k passenger car with:
a) restaurant car with self-service area and/or buffet compartment.
b) kitchen/snack-bar compartment and/or automatic vending machine.

m long-distance traffic with a length of more than 24.5 m, with 10 first class, 12 second class, 5 first (type AB), 6 second (type BD) compartments.

n suburban coach with a length of more than 24.5m, open with centre aisle in second class (12 bays), centre aisle or side corridor in first class, two midway entrances, push-pull fitted (36-way control cable).

o non-air-conditioned, long-distance traffic with less than 10 first class, 12 second class, and/or 5 first (type AB), 6 second (type BD) compartments. Used with letter m.

p air-conditioned, long-distance traffic and suburban traffic, open with centre aisle.

q car with driving compartment for push-pull operation, which is equipped with 34-way control cable (applies only to unmodernised vehicles built before 1991).

r fitted with KE-GPR-Rapidbremse high speed brake. Used with letter n.

s baggage car with side corridor and car with baggage compartment; or sleeping car of type ‘special’.

u push-pull passenger cars which are equipped with 34-way control cable.

uu push-pull passenger cars which are equipped with 36-way control cable.

v air-conditioned, long-distance traffic with less than 10 first class, 12 second class, and/or 5 first (type AB), 6 second (type BD) compartments.

w lightweight four-axle coach with 18.7m length over buffers.

x S-Bahn stock for urban push-pull trains with a length of at least 24.5m, open with centre aisle in first and second class. Central electric energy supply from the train power cable, midway entrances, KE-GPR-A high speed brake fitted.

y suburban coach with a length of more than 24.5m, open with centre aisle in the second class (11 bays), two midway entrances, push-pull fitted.

z passenger car with central electrical power supply from the main heating line power cable.