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2018 Mercedes-Benz E-Class Problems, Reliability & Owner's Guide

Common problems with the 2018 Mercedes-Benz E-Class, reliability ratings, maintenance tips, and owner reviews. Get your complete owner's guide.

Overview

The 2018 Mercedes-Benz E-Class is a midsize luxury sedan (also offered as a wagon and coupe, depending on trim) built for drivers who want a refined daily commuter with high-end comfort and advanced technology. It sits in the heart of Mercedes’ lineup, positioned between the smaller C-Class and the flagship S-Class, offering many “big Mercedes” features at a more attainable price. The 2018 model is part of the W213 generation introduced for 2017, so it benefits from a modern platform, updated driver-assistance tech, and a premium cabin design. It’s an ideal choice for buyers prioritizing quiet cruising, safety features, and a strong mix of performance and efficiency.

Key Features

- Strong engine lineup: E 300 models use a 2.0L turbocharged inline-4 (commonly rated around 241 hp), while E 400 models use a 3.0L twin-turbo V6 (around 329 hp). The AMG E 63 S brings a hand-built 4.0L twin-turbo V8 (over 600 hp) for serious performance. - Smooth transmissions and available AWD: Most trims use a 9-speed automatic (9G-TRONIC) and many configurations offer 4MATIC all-wheel drive for improved traction in rain and snow. - High-end interior and infotainment: Premium materials, available dual widescreen displays, and available Burmester audio make the cabin feel closer to flagship-luxury than “mid-level.” - Advanced safety and driver assistance: Available options can include adaptive cruise control, lane-keeping assistance, blind-spot monitoring, and other semi-automated driving aids that reduce long-trip fatigue. - Comfort-oriented ride: Available AIRMATIC air suspension on certain trims delivers a composed ride with the ability to balance comfort and handling.

Common Issues & Reliability

Shoppers researching 2018 Mercedes-Benz E-Class reliability and 2018 Mercedes-Benz E-Class common issues should know that the E-Class is generally solid for its segment, but it’s a complex luxury car where electronics, sensors, and maintenance history matter. The most commonly reported 2018 Mercedes-Benz E-Class problems tend to fall into these categories: - Infotainment and electronics glitches: Owners sometimes report COMAND/infotainment freezes, Bluetooth dropouts, camera or sensor warnings, or intermittent driver-assistance messages. These issues can show up early (often within the first 10,000–40,000 miles) and may require software updates, battery testing, or module diagnosis. - Air suspension concerns (when equipped): Models with AIRMATIC can develop air strut leaks or compressor wear over time. Symptoms include a sagging corner after sitting overnight, a harsher ride, or suspension warnings. This is more common as mileage climbs (often 60,000+ miles), but age and climate can play a role. - Engine cooling and oil seepage items: Some owners report coolant-related warnings, thermostat or water pump issues, and minor oil seepage from seals/gaskets as the car ages. These concerns commonly appear in the mid-mileage range (roughly 40,000–80,000 miles), and ignoring them can lead to larger repairs. - Brake wear and noise: The E-Class is heavy and powerful, and many owners note faster brake pad/rotor wear than economy cars, along with occasional squeal or dust. This isn’t unusual for the class, but it affects running costs and is worth budgeting for.

Frequently Asked Questions

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