BestCarRank
Mercedes-Benz

2018 Mercedes-Benz E 400

Problems, Recalls & Reliability Report

Below Average

Quick Summary

The 2018 Mercedes-Benz E 400 has 28 owner complaints filed with NHTSA — that's 1.0x the segment average of 28. The most common issue is other problems (18% of all complaints), specifically: recently purchased a 2018 mercedes-benz e400 4matic wagon with premium package 3 that includes all of the available driver assistance programs (semi autonomous steering, adaptive cruise control, lane keep assistance, blindspot detection, automatic parking assist, cross traffic alert). according to m. There are 9 recalls issued for this model year. ⚠️ 2 fire reports filed.

2 fire reports 2 crash reports

28

Total Complaints

9

Recalls Issued

—/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

OTHER

5 complaints
18%
  • • RECENTLY PURCHASED A 2018 MERCEDES-BENZ E400 4MATIC WAGON WITH PREMIUM PACKAGE 3 THAT INCLUDES ALL OF THE AVAILABLE DRIVER ASSISTANCE PROGRAMS (SEMI AUTONOMOUS STEERING, ADAPTIVE CRUISE CONTROL, LANE KEEP ASSISTANCE, BLINDSPOT DETECTION, AUTOMATIC PARKING ASSIST, CROSS TRAFFIC ALERT). ACCORDING TO M
  • • WINDSHIELD WAS STRUCK BY A ROCK AND AN INCH HORIZONTAL CRACK HAS SINCE POPPED UP. CAR WAS PURCHASED 06/28. HAD MANY CARS BEFORE & NEVER HAD A CRACKED WINDSHIELD. GM & CHRYSLER. THIS IS MY FIRST FOREIGN MADE CAR & LOW AND BEHOLD, THE WINDSHIELD CRACKS AFTER BEING STRUCK BY A ROCK. THIS IS A QUALITY I
  • • ON MAY 30, 2020, AROUND 3 PM, MY SON WAS THE DRIVER AND MY WIFE AND I WERE THE PASSENGERS DRIVING IN JERSEY CITY, NJ (USA). WHILE CHANGING LANES ON THE ROAD, THE CAR SUDDENLY STOPPED FUNCTIONING. ALL DASHBOARD LIGHTS CAME ON AND IT SHOWED A CAR WITH ZIG ZAG LINES AND STATED INOPERABLE. WE WERE I
Typical onset: 50K miles Est. repair: $500

“RECENTLY PURCHASED A 2018 MERCEDES-BENZ E400 4MATIC WAGON WITH PREMIUM PACKAGE 3 THAT INCLUDES ALL OF THE AVAILABLE DRIVER ASSISTANCE PROGRAMS (SEMI AUTONOMOUS STEERING, ADAPTIVE CRUISE CONTROL, LANE KEEP ASSISTANCE, BLINDSPOT DETECTION, AUTOMATIC PARKING ASSIST, CROSS TRAFFIC ALERT). ACCORDING TO M”

— NHTSA complaint filing

When Problems Appear on the 2018 Mercedes-Benz E 400

Based on 11 owner complaints that included an odometer reading. Median mileage at time of complaint: 15K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage
0-30K
11
30-60K
0
60-100K
0
100-150K
0
150-200K
0
200K+
0

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (9)

ELECTRICAL SYSTEM:SOFTWARE05/02/2021

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Fix: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

Estimated Insurance Cost for 2018 Mercedes-Benz E 400

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$2,143
Full coverage / month
$179
Liability only / year
$710
vs US avg
+28%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (sedan-luxury)1.28x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.00x
= Full coverage estimate$2143

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz E 400 Service Intervals

Oil change
10K mi / 12 mo
Tire rotation
10K mi
Brake fluid
24 months
Transmission fluid
40K mi
Engine coolant
150K mi
Spark plugs
60K mi
Cabin air filter
20K mi
Engine air filter
40K mi
Differential (AWD/4WD)
40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
4 yr / 50K mi
Powertrain
4 yr / 50K mi
Hybrid/EV battery
10 yr / 155K mi
Corrosion (rust perforation)
4 yr / 50K mi
Roadside assistance
4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

These are the terms for a new Mercedes-Benz. If you're buying a used 2018 E 400, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mercedes-Benz dealer for VIN-specific remaining warranty.

Estimated Repair Costs

OTHER(~50K mi)
$500
ELECTRICAL(~50K mi)
$500
ENGINE(~50K mi)
$500
SEATS/RESTRAINTS(~50K mi)
$500
DRIVER ASSIST/CAMERAS(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 28 owner complaints for this specific year, here's what to check or ask about:

  • ☐
    OTHER: RECENTLY PURCHASED A 2018 MERCEDES-BENZ E400 4MATIC WAGON WITH PREMIUM PACKAGE 3 THAT INCLUDES ALL OF THE AVAILABLE DRIVER ASSISTANCE PROGRAMS (SEMI AUTONOMOUS STEERING, ADAPTIVE CRUISE CONTROL, LANE KEEP ASSISTANCE, BLINDSPOT DETECTION, AUTOMATIC PARKING ASSIST, CROSS TRAFFIC ALERT). ACCORDING TO M

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ELECTRICAL: ON MAY 30, 2020, AROUND 3 PM, MY SON WAS THE DRIVER AND MY WIFE AND I WERE THE PASSENGERS DRIVING IN JERSEY CITY, NJ (USA). WHILE CHANGING LANES ON THE ROAD, THE CAR SUDDENLY STOPPED FUNCTIONING. ALL DASHBOARD LIGHTS CAME ON AND IT SHOWED A CAR WITH ZIG ZAG LINES AND STATED INOPERABLE. WE WERE I

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    ENGINE: I WAS DRIVING IN THE FLORIDA TURNPIKE TRAVELING FROM MIAMI I STOPPED AT A SERVICE STATION TO GO TO THE RESTROOM AND WHEN I CAME BACK MY CAR HAD A FIRE COMING FROM THE ENGINE. I HAD TO GET THE FIRE EXTINGUISHER FROM THE GAS STATION, OPENED THE HOOD AND PUT DOWN THE FIRE. THE VEHICLE WAS STATIONARY AN

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    SEATS/RESTRAINTS: The seat belts do not retract when taking them off.

    Typically appears around 50K miles. Repair cost ~$500

  • ☐
    RECALLS: Verify all 9 recalls have been completed — free at any Mercedes-Benz dealer
  • ☐
    General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz E 400 — Year Comparison

How does 2018 compare to other years? Fewer complaints = more reliable.

2018
28Below Average
Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
28
Recalls
9
Fire reports
2
Crash reports
2
Injury reports
0
Segment avg
28

Check a Specific VIN

See recalls for YOUR 2018 Mercedes-Benz E 400

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