WhichTractor
  • WhichTractor size: Standard-size
  • No lab test on file
  • 1974–1978
  • 81 built

WhichTractor size, not the maker’s category

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

Bührer Komfort 685 (A) specs: hp, weight, years

Mercedes-Benz OM 352 six-cylinder diesel. The manufacturer claimed 83.8 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.

Engine power, claimed · gross or net not stated

83.8 hp

62.5 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Bührer 685/685A”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

Weight
7,518 lb
3-point lift
5,071 lb
Hyd. flow
10.3 gpm
Top speed
15.5 mph

Bührer Komfort 685 (A) specs: key facts

  • The Bührer Komfort 685 (A) was built from 1974 to 1978.

  • The Bührer Komfort 685 (A) has a claimed engine power (gross or net not stated) of 62.5 kW (83.8 hp); it has no measured PTO figure.

  • The Bührer Komfort 685 (A) was offered in two-wheel-drive and four-wheel-drive versions.

  • The Bührer Komfort 685 (A) has a Mercedes-Benz OM 352 engine, a 6-cylinder 5.67 L diesel unit.Source 2

  • The Bührer Komfort 685 (A) weighs 3,410 kg (7,518 lb) unladen.

  • The Bührer Komfort 685 (A) has an independent rear PTO running at 540/800 rpm.

  • The three-point hitch of the Bührer Komfort 685 (A) lifts 2,300 kg (5,071 lb) at the lower-link ends.

  • The hydraulic pump of the Bührer Komfort 685 (A) delivers 39.0 L/min (10.3 gpm).

Source · Traktorenlexikon, “Bührer 685/685A”

Illustration of the 1974–1978 Bührer Komfort 685 (A), a 84 hp farm tractor, four-wheel-drive version · colour not recorded — shown unpainted · operator station not recorded — shown as an open platform, a drawing generated from its specification record
Illustration — not a photograph · four-wheel-drive version · colour not recorded — shown unpainted · operator station not recorded — shown as an open platform

How much horsepower does a Komfort 685 (A) have?

The only figure for the Komfort 685 (A) is 83.8 hp (62.5 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.

Engine, claimed (gross/net not stated)
83.8 hp

Source · Traktorenlexikon, “Bührer 685/685A”

What engine is in a Komfort 685 (A)?

A Komfort 685 (A) has a Mercedes-Benz OM 352, a 6-cylinder 5.67 L diesel engine.

Engine — Komfort 685 (A) engine specifications
Make & modelMercedes-Benz OM 352Source 2
Cylinders6, liquid-cooledSource 2
Displacement346.2 ci · 5.67 LSource 2
Max torque232 lb·ft · 314 N·m @ 1,600 rpm
Electrical system12 V

Source · Traktorenlexikon, “Bührer 685/685A”

How much will a Komfort 685 (A) lift, and what is its hydraulic flow?

A Komfort 685 (A) lifts 5,071 lb (2,300 kg) at the lower-link ends of its Category 2 three-point hitch.

Hydraulics & PTO — Komfort 685 (A) hydraulics and PTO specifications
Pump flow10.3 gpm · 39.0 L/min
Pressure2,845 psi · 196 bar
Hitch categoryCategory 2
Lift at ends5,071 lb · 2,300 kg
Rear PTOIndependent, engine-driven, 540/800 rpm @ 1,960 engine rpmEngages under loadGround-speed PTO available
PTO shaft1 3/8"- 6 splines (Form-A)

Source · Traktorenlexikon, “Bührer 685/685A”

What transmission does a Komfort 685 (A) have?

Transmission specifications for the Komfort 685 (A) are below.

Transmission — Komfort 685 (A) transmission specifications
BrakesPedal-operated hydraulic internal shoe brake acting on differential half-shafts
SteeringMechanically operated ZF-GEMMER steering
Top speed15.5 mph · 25 km/h

Source · Traktorenlexikon, “Bührer 685/685A”

How much does a Komfort 685 (A) weigh?

A Komfort 685 (A) weighs 7,518 lb (3,410 kg) unladen.

Weights & dimensions — Komfort 685 (A) weights and dimensions
Unladen weight7,518 lb · 3,410 kg3,568
Maximum permissible mass11,464 lb · 5,200 kg
Wheelbase90.2 in · 2,290 mmtwo-wheel-drive version
Length157.5 in · 4,000 mm
Width75.6 in · 1,920 mm
Height73.6 in · 1,870 mm
Ground clearance16.5 in · 420 mmtwo-wheel-drive version
Front track59.1–68.9 in · 1,500–1,750 mmtwo-wheel-drive version
Rear track59.1–68.9 in · 1,500–1,750 mmthe article lists alternatives

Source · Traktorenlexikon, “Bührer 685/685A”

What oil does a Komfort 685 (A) take, and how much?

A Komfort 685 (A) engine takes 8.5 qt (8.0 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

Komfort 685 (A) fluid capacities, grades and service intervals
SystemCapacity
Engine oil8.5 qt · 8.0 LSource: Traktorenlexikon, “Bührer 685/685A” · single source, not independently verified
Transmission34.9 qt · 33.0 LSource: Traktorenlexikon, “Bührer 685/685A” · single source, not independently verified
Hydraulic11.6 qt · 11.0 LSource: Traktorenlexikon, “Bührer 685/685A” · single source, not independently verified
Cooling system25.4 qt · 24.0 LSource: Traktorenlexikon, “Bührer 685/685A” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

Which tractors compare with a Komfort 685 (A)?

Within 10% of its 78.5 hp at the PTO as the maker claimed it, with no laboratory test on file, the same type, and first built within 15 years of it.

Common questions about the Bührer Komfort 685 (A)

Is a Komfort 685 (A) two-wheel drive or four-wheel drive?

The Bührer Komfort 685 (A) was offered in two-wheel-drive and four-wheel-drive versions.

What PTO does a Komfort 685 (A) have?

A Komfort 685 (A) has a independent 540/800 rpm rear PTO on a 1 3/8"- 6 splines (Form-A) shaft.

Sources and how this page was built

Compiled from Traktorenlexikon, “Mercedes-Benz MB trac 1000”; and Traktorenlexikon, “Bührer 685/685A”.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. Traktorenlexikon: Bührer 685/685A — CC BY-SA 4.0, WIKIBOOKS-TL-91466 · revision 1042456. Wikibooks contributors (Traktorenlexikon). Original document
  2. Traktorenlexikon: Mercedes-Benz MB trac 1000 — CC BY-SA 4.0, WIKIBOOKS-TL-79534 · revision 1053120. Wikibooks contributors (Traktorenlexikon). Original document