CARCARETOOL VEHICLE GUIDE

Mercedes-Benz 309

Mercedes-Benz 309 — hatchback, OM 621; I4; 1988 cc; M 121; I4; 1988 cc. Explore engine specifications, fuel economy, dimensions, tire sizes, seating, maintenance and tire-pressure guidance.

Mercedes-Benz 309
EngineOM 621; I4; 1988 cc; M 121; I4; 1988 cc

About the Mercedes-Benz 309

Mercedes-Benz 309 is a hatchback in the hatchback class. The available vehicle data lists OM 621; I4; 1988 cc; M 121; I4; 1988 cc as an engine configuration. Public source material describes the model in the context of its design, market positioning and vehicle history.

This Mercedes-Benz 309 guide focuses on the details drivers commonly want to know, including engine information for OM 621; I4; 1988 cc; M 121; I4; 1988 cc. Exact specifications should be matched to the relevant model year and market.

Mercedes-Benz 309 specifications at a glance

Use this table for the model-level essentials. Exact figures may vary by year, trim, engine and market.

Make Mercedes-Benz
Model 309
Model years Not specified
Body style hatchback
Vehicle class hatchback
Manufacturer Mercedes-Benz
Market / country NL, UA

Engine, transmission and performance

Engine information for the Mercedes-Benz 309 includes OM 621; I4; 1988 cc; M 121; I4; 1988 cc.. Published power figures include 40 kW (55 hp) / 4350; 59 kW (80 hp) / 5000.. Published torque figures include 113 Nm / 2400; 1967.

Engine OM 621; I4; 1988 cc; M 121; I4; 1988 cc
Power 40 kW (55 hp) / 4350; 59 kW (80 hp) / 5000
Torque 113 Nm / 2400; 1967
TIRE PRESSURE

Recommended tire pressure for Mercedes-Benz 309

Check the vehicle placard or owner’s manual for the manufacturer’s cold inflation pressure. CarCareTool estimates are clearly labelled when an exact verified value is unavailable.

Normal load32 PSI front30 PSI rear
Fully loaded34 PSI front33 PSI rear
Load condition Front Rear Status
Normal 32 PSI 30 PSI Estimate
Fully loaded 34 PSI 33 PSI Estimate

Calculate how much air to add

Frequently asked questions about Mercedes-Benz 309

These FAQs are generated automatically for this specific vehicle from the specifications, features and ownership data available in CarCareTool. Questions are selected by relevance so the page focuses on details that can actually be answered for this model.

What engine does the Mercedes-Benz 309 have?
The available source data lists the Mercedes-Benz 309 engine as OM 621; I4; 1988 cc; M 121; I4; 1988 cc. Engine availability can differ by model year and market.
What tire pressure should I use for the Mercedes-Benz 309?
For the correct setting, use the cold inflation pressure on the vehicle placard or in the owner’s manual. When CarCareTool does not have a verified configuration-specific value, its starting estimate is 32 PSI front and 30 PSI rear for normal load. This is an estimate, not an OEM recommendation.
What is the best engine oil for the Mercedes-Benz 309?
There is no single best engine oil for every Mercedes-Benz 309 configuration. Use the viscosity grade and manufacturer approval specified for the exact engine in the owner’s manual.
What body style is the Mercedes-Benz 309?
The Mercedes-Benz 309 is classified as a hatchback.
How much horsepower does the Mercedes-Benz 309 have?
The published figure for the Mercedes-Benz 309 is 40 kW (55 hp) / 4350; 59 kW (80 hp) / 5000. Output can vary by engine and specification.
Who makes the Mercedes-Benz 309?
The manufacturer listed for the Mercedes-Benz 309 is Mercedes-Benz.
How much torque does the Mercedes-Benz 309 produce?
The available source data lists 113 Nm / 2400; 1967 of torque for the Mercedes-Benz 309.
What class of car is the Mercedes-Benz 309?
The Mercedes-Benz 309 is listed in the hatchback class.
Which markets or countries sold the Mercedes-Benz 309?
The CarCareTool catalog currently associates the Mercedes-Benz 309 with NL, UA. Market availability and specifications can differ.
How often should I check the tire pressure on the Mercedes-Benz 309?
Check the tires regularly and before long trips, with the tires cold. Use the vehicle placard or owner’s manual as the source of the manufacturer’s recommended pressure.
Should I use the tire sidewall pressure for the Mercedes-Benz 309?
No. The maximum pressure printed on the tire sidewall is not automatically the vehicle’s recommended setting. Use the vehicle placard or owner’s manual for the correct cold inflation pressure.
Does the recommended tire pressure change when the Mercedes-Benz 309 is fully loaded?
It can. Many vehicles specify a different cold pressure for heavier loads. Check the vehicle placard or owner’s manual for the exact loading condition.
Can the Mercedes-Benz 309 have different tire pressures front and rear?
Yes. Some vehicles specify different front and rear pressures because axle loads and vehicle configurations differ. Follow the exact vehicle recommendation where available.
Why can mileage differ from the published figure for the Mercedes-Benz 309?
Published fuel economy is measured under a defined test method. Real-world mileage can vary with traffic, speed, temperature, tire pressure, payload, maintenance and driving style.

Data sources and verification are available in the page editor; exact specifications can vary by year, market, trim and engine.