1986–1989 MERCEDES-BENZ E-CLASS

3.0L I6•RWD•gas•M103

5-Year Cost of Ownership

$8,099 maintenance + likely wear

~$1,620/yr · 130¢/mile equivalent

Compare this engine

2.0L Turbo I4

3.0L Turbo V6

2.0L I4 CDI

Labor Times — 1986–1989 Mercedes-Benz E-Class

MOST COMMON JOBS8 jobs that 80% of techs look up

503 jobs across 18 categories

body (34)

brakes (42)

cooling (21)

drivetrain (20)

electrical (75)

emissions (1)

Oxygen Sensor Replacement
emissions

engine (61)

exhaust (25)

fuel (20)

fuel-system (8)

hvac (23)

ignition (13)

interior (24)

maintenance (32)

misc (2)

steering (19)

suspension (39)

transmission (44)

Repair Procedures — 1986–1989 Mercedes-Benz E-Class

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

🏆 Sponsor — $99

🔓 Not written yet — unlock any for $3 · 503

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 · 34

brakes · 42

cooling · 21

drivetrain · 20

electrical · 75

emissions · 1

Oxygen Sensor Replacement$3 — unlock

engine · 61

exhaust · 25

fuel · 20

fuel-system · 8

hvac · 23

ignition · 13

interior · 24

maintenance · 32

misc · 2

steering · 19

suspension · 39

transmission · 44

Torque Specs — 1986–1989 Mercedes-Benz E-Class

Units

130 torque specs across 11 categories

brakes (23)

cooling (16)

drivetrain (12)

electrical (12)

engine (36)

exhaust (2)

fuel (4)

hvac (5)

ignition (2)

steering (4)

suspension (14)

Fluid Capacities — 1986–1989 Mercedes-Benz E-Class

DTC Codes — 1986–1989 Mercedes-Benz E-Class

No DTC data for this vehicle.

Battery Specs — 1986–1989 Mercedes-Benz E-Class

BCI Group 48

Lead AcidOEM

estimated

520 CCA

Cold Cranking Amps

60 Ah

Amp Hours

100 min

Reserve Capacity

12V

Voltage

TerminalTop Post

PolarityRight Positive

Dimensions11.94" × 6.88" × 7.5"

🛒 Cross-references (buy at any parts store)

Buy on Amazon

Fitment notes: Battery located under hood on right side; European H6 (Group 48) dimensions required

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 — 1986–1989 Mercedes-Benz E-Class

Module data for this vehicle is being compiled — check back soon.

Maintenance Schedule — 1986–1989 Mercedes-Benz E-Class

32 maintenance items across 1 category

maintenance (32)

Wiper Blade Sizes — 1986–1989 Mercedes-Benz E-Class

🌧️ Wiper Blades

1986-1989single front blade

26″

Front (single blade)

Attachmentbayonet

This generation uses one Monoblade-style front wiper that sweeps the whole windshield — don't buy a pair.

📝 W124 E-Class used single Monoblade front wiper system; sedan has no rear wiper. Bayonet-style attachment common for this era

🛒 Part numbers on the shelf

26″Bosch ICON 26A/B · Rain-X WeatherBeater RX30126 · ANCO 31-26Buy 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 E-Class →

NHTSA Recalls — 1986–1989 Mercedes-Benz E-Class

No NHTSA recalls on file for this vehicle.

Vehicle Info — 1986–1989 Mercedes-Benz E-Class

Wiper blades

W124 E-Class used single Monoblade front wiper system; sedan has no rear wiper. Bayonet-style attachment common for this era

Front (single blade)

26in

Attachment

bayonet

26″ fits: Bosch ICON 26A/B · Rain-X WeatherBeater RX30126 · ANCO 31-26

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 1986–1989 Mercedes-Benz E-Class 3.0L I6 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 ShopBase — $249/mo, all features included. Built by the same team.

Try ShopBase →