Open Labor Project
☰
💙
Support
🩺
Diagnose
🔎
VIN
🛠️
Repairs
📚
Specs
▾
⚠️
Recalls
⚖️
Compare
🏆
Rankings
🚨
Neutral
🌧️
Wipers
✨
What's New
🇺🇸 US
🌍 Intl
🔧
The Diag Desk
Real humans
🧪
Myth Lab
Busted
{}
API
Plans
ShopBase
Shop Management · $249/mo
💙
Support
← Mercedes-Benz
Mercedes-Benz 450SEL
2 generations · 2 engine options · data across all years of the 450SEL platform.
943
Labor times
284
Torque specs
0
DTC codes
0
Repair procedures
16
Fluid specs
0
Open recalls
5-Year Cost of Ownership · 1974 4.5L V8
$8,424
~$1,685/yr maintenance labor at $150/hr. Other engines/years vary — pick a generation below to see its breakdown.
Generations & engine options
1974
1 engine option
4.5L V8
RWD
1973
1 engine option
4.5L V8
RWD
Become a Founding Sponsor
Your name on every Mercedes-Benz 450SEL procedure
For $99, we generate the full step-by-step repair set for the 1974 4.5L V8 — free for everyone, forever, with your name on it.
Sponsor — $99 →
⚖️ Compare the 450SEL to another vehicle →