Which is cheaper to maintain, the Mercedes-Benz 450SLC or the Mercedes-Benz 450SLC?

Based on 5-year routine maintenance labor at a $150/hr indie shop rate, the Mercedes-Benz 450SLC is cheaper to maintain — about $403 less over 60,000 miles. Parts cost is not included.

What's the labor difference between the 4.5L V8 and the 4.5L V8?

Across 23 common maintenance jobs, hours vary by drivetrain and engine layout. See the side-by-side table on this page for each job's labor hours and estimated cost.

Are there any active recalls on the Mercedes-Benz 450SLC or Mercedes-Benz 450SLC?

The Mercedes-Benz 450SLC has 0 open NHTSA recalls. The Mercedes-Benz 450SLC has 0 open recalls. Recall repairs are free at any authorized dealer.

1974 Mercedes-Benz 450SLC vs 1975–1980 Mercedes-Benz 450SLC

Specifications

Year

1974

1975–1980

Engine

4.5L V8

Drivetrain

RWD

Transmission

automatic

—

Fuel

gas

Powertrain

Engine output, acceleration, top speed, handling, braking — and Nürburgring if either car ran one.

Horsepower

190hp

—hp

Torque

240lb-ft

—lb-ft

0–60 mph

9.5s

—

Quarter Mile

17.2s @ 81 mph

—

Top Speed

127 mph

—

Skidpad

—

60–0 Braking

—

70–0 Braking

—

Curb Weight

3,835 lb

—

Performance specs synthesized from manufacturer figures and instrumented magazine tests (Car and Driver, Motor Trend, Road & Track). MPG from EPA fueleconomy.gov. Numbers flagged as "low confidence" by AI generation are conservative estimates from related platforms.

Cost of Ownership

★ WINNER

5-Year Maintenance

$8,424

0.14 $/mi

5-Year Maintenance

$8,827

0.15 $/mi

🏆

ADVANTAGEMercedes-Benz 450SLC — Saves you $403 over 5 years (5% less in routine maintenance labor)

Routine maintenance only. Cost = labor hours × $150/hr × estimated 5-yr frequency. Parts cost not included.

Maintenance Breakdown

Hours per common service. Lower is faster (and cheaper) at the shop.

Oil & filter change

0.6 hrs$1,560 / 5yr

Front brake pads

1.9 hrs$730 / 5yr

Tire rotation

0.6 hrs$720 / 5yr

Rear brake pads

1.9 hrs$710 / 5yr

Differential fluid

1.6 hrs$560 / 5yr

Brake fluid flush

1.2 hrs$390 / 5yr

Wiper blades

0.3 hrs$300 / 5yr

Fuel filter

0.8 hrs$300 / 5yr

12V battery

0.6 hrs$290 / 5yr

Spark plugs

1.2 hrs$260 / 5yr

Water pump

3.9 hrs$247 / 5yr

Intake manifold gasket

4.7 hrs$239 / 5yr

Coolant flush

1.2 hrs$230 / 5yr

Oil pan gasket

5.5 hrs$219 / 5yr

Engine air filter

0.5 hrs$210 / 5yr

Valve cover gasket

2.3 hrs$162 / 5yr

Alternator

2.3 hrs$161 / 5yr

Power steering flush

0.8 hrs$140 / 5yr

Oxygen sensor

— hrs

2.3 hrs$233 / 5yr

PCV valve

0.6 hrs$110 / 5yr

Starter motor

2.3 hrs$109 / 5yr

Serpentine belt

— hrs

0.9 hrs$170 / 5yr

Thermostat

1.2 hrs$77 / 5yr

Active Recalls

Open NHTSA Recalls

CLEAR

Open NHTSA Recalls

CLEAR

✓ Both vehicles are completely clear of open safety recalls.

Fluid Capacities

Mercedes-Benz 450SLC

ac_refrigerant · R-12

brake1.00 qt · FMVSS 116 DOT 4, MB 331.0

coolant14.80 qt · MB 325.0

engine_oil8.50 qt · API SE or SF

power_steering1.30 qt · MB 236.3

rear_diff1.90 qt · API GL-5, MB 235.0

transmission_auto8.00 qt · MB 236.1

washer4.20 qt · windshield washer fluid

Mercedes-Benz 450SLC

ac_refrigerant · R-12

brake1.00 qt · FMVSS 116 DOT 4

coolant13.00 qt · MB 325.0

engine_oil9.00 qt · API SF or SG

power_steering2.10 qt · MB 236.3

rear_diff1.90 qt · MB 235.0

transmission_auto9.50 qt · MB 236.1

washer3.50 qt · Windshield washer fluid

The Verdict

TOO CLOSE TO CALL

Across cost of ownership and recall count, neither vehicle pulls decisively ahead. Pick on personal preference — drivetrain, transmission feel, brand loyalty, or the engine that puts a smile on your face.

Open the full dashboard for either truck

Labor times, torque specs, fluid capacities, DTC codes, repair procedures, recalls, common platform problems.