1985 MERCEDES-BENZ 300TD

3.0L I5 Diesel•RWD•AUTOMATIC•diesel

5-Year Cost of Ownership

$28,560 maintenance + likely wear

~$5,712/yr · 480¢/mile equivalent

Labor Times — 1985 Mercedes-Benz 300TD

MOST COMMON JOBS8 jobs that 80% of techs look up

490 jobs across 17 categories

body (31)

brakes (41)

cooling (21)

drivetrain (19)

electrical (70)

engine (68)

exhaust (24)

fuel (20)

fuel-system (8)

hvac (22)

ignition (4)

interior (24)

maintenance (30)

misc (2)

steering (23)

suspension (39)

transmission (44)

Repair Procedures — 1985 Mercedes-Benz 300TD

Unlock any single procedure for $3 — or become the founding sponsor and we generate every common job on this 300TD, with your name on each one.

🏆 Sponsor — $99

🔓 Not written yet — unlock any for $3 · 490

Your $3 writes the full step-by-step procedure and makes it free for every owner on earth, forever — with your name on it.

body · 31

brakes · 41

cooling · 21

drivetrain · 19

electrical · 70

engine · 68

exhaust · 24

fuel · 20

fuel-system · 8

hvac · 22

ignition · 4

interior · 24

maintenance · 30

misc · 2

steering · 23

suspension · 39

transmission · 44

Torque Specs — 1985 Mercedes-Benz 300TD

Units

145 torque specs across 12 categories

brakes (23)

cooling (18)

drivetrain (12)

electrical (12)

engine (45)

exhaust (2)

fuel (4)

hvac (5)

ignition (3)

steering (8)

suspension (10)

transmission (3)

Fluid Capacities — 1985 Mercedes-Benz 300TD

DTC Codes — 1985 Mercedes-Benz 300TD

No DTC data for this vehicle.

Battery Specs — 1985 Mercedes-Benz 300TD

BCI Group 27

Lead AcidOEM

estimated

650 CCA

Cold Cranking Amps

70 Ah

Amp Hours

120 min

Reserve Capacity

12V

Voltage

TerminalTop Post

PolarityRight Positive

Dimensions12.06" × 6.81" × 8.88"

🛒 Cross-references (buy at any parts store)

Buy on Amazon

Fitment notes: European H6/L3 equivalent; battery located in engine compartment

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Control Modules — 1985 Mercedes-Benz 300TD

Every control module on the 1981-1985 Mercedes-Benz 300TD — where it lives, replacement time, and what it takes to program a replacement.

Instrument Cluster (IC)1.2 hr R&Rno coding

📍 Dashboard behind instrument panel

⚠️ Electromechanical gauges with no electronic control module; odometer is mechanical; no programming capability

Glow Plug Control Relay (GPCR)0.3 hr R&Rno coding

📍 Engine compartment, firewall area near brake booster

⚠️ Time-delay relay for diesel glow plug system; purely electromechanical, no electronic control or programming

Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.

Maintenance Schedule — 1985 Mercedes-Benz 300TD

30 maintenance items across 1 category

maintenance (30)

Wiper Blade Sizes — 1985 Mercedes-Benz 300TD

🌧️ Wiper Blades

1985

20″

Driver side

20″

Passenger side

16″

Rear

Attachmenthook

📝 W123 chassis wagon with rear wiper

🛒 Part numbers on the shelf

20″Bosch ICON 20A/B · Rain-X WeatherBeater RX30120 · ANCO 31-20Buy on Amazon

Rear 16″model-specific arm — check the package's vehicle listBuy on Amazon

Size-standard part numbers — verify your connector type before buying.

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Full wiper guide for this 300TD →

NHTSA Recalls — 1985 Mercedes-Benz 300TD

No NHTSA recalls on file for this vehicle.

Vehicle Info — 1985 Mercedes-Benz 300TD

Fuel economy (EPA)

City

19mpg

Highway

23mpg

Combined

21mpg

Fuel

Diesel

Capability & size

Seating

7seats

EPA class

Midsize-Large Station Wagons

Wiper blades

W123 chassis wagon with rear wiper

Driver side

20in

Passenger side

20in

Rear

16in

Attachment

hook

20″ fits: Bosch ICON 20A/B · Rain-X WeatherBeater RX30120 · ANCO 31-20

Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.

Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1985 Mercedes-Benz 300TD 3.0L I5 Diesel and can vary by trim.

🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.

Stuck on a repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI

Building an app?

Free API access to all this data — 10 requests/day, no card required.

Get an API key →

Run a shop?

Manage repairs, estimates, and customers with Auto Shop Base — $249/mo, all features included. Built by the same team.

Try Auto Shop Base →