Buyer Research

2019 Mercedes-Benz E-Class — Should You Buy One?

Typical asking price: $22,000–$30,000. There are 2 high-severity known issues you need to know before handing over a check.

Deciding between model years? Compare the 15 Mercedes-Benz E-Class years we've written up →

Kestrel Take

Fifty-four complaints is a thin record, and thin means few people filed rather than few things break — this is a newer, more expensive car whose owners are more likely to be inside a warranty than inside NHTSA's database. What is on file is worth reading anyway: a transmission wiring harness that owners say dealers would not repair, the same crankcase vent valve code that dominates the 2017 and 2018, seat belts that stop retracting, and one car that burst into flames in a car park minutes after being parked. Buy it the way you would buy any modern Mercedes out of warranty: a scan tool, a cold start, and a hard look at what the remaining coverage actually includes.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 54 owner complaints for the 2019 Mercedes-Benz E-Class, and 6 recall campaigns.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. The largest single group is electrics and electronics at 20%. That is notable without being overwhelming — worth checking, not worth panicking about.

6 recall campaigns cover this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2019 Mercedes-Benz E-Class

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

Transmission and engine wiring harness fails, and dealers are slow to fix itHigh — wallet impact

Two owners in the electrical cluster report a broken transmission wiring harness, one saying repeated dealership visits produced no repair and they stopped driving the car. Others describe every warning light on the dash arriving at once at 30 mph — check engine, collision warning, the lot — which is what a harness or connector fault looks like from the driver's seat. Have the car scanned for stored transmission and communication codes, not just engine codes.

Repair cost (estimate): $1,200–$3,500 for the harness and labour

Source: NHTSA complaints filed under electrics and electronics (11).

Crankcase vent valve code P052E, and rear main seal leaksHigh — wallet impact

An owner reports code P052E for the crankcase ventilation valve on an E300, the same fault that fills the 2017 and 2018 records for this engine. A separate owner was told at routine service that the car needed a rear main seal, having inspected for it at purchase 13,000 miles earlier and found it clean — so it can arrive quickly. One filing reports a stall on the highway with a suspected timing chain. Scan the car and look for oil between the engine and gearbox.

Repair cost (estimate): $900–$3,000 for the crankcase vent valve; $1,500–$3,000 for a rear main seal

Source: NHTSA complaints filed under the engine (11).

Front seat belts stop retracting and the reminder chimes with the belt fastenedMedium

Nine seat belt complaints, and they describe two related faults: belts that do not retract at all, and a car that keeps sounding the unfastened-belt alert with both belts properly buckled, surviving repeated unbuckling and re-buckling. One owner could not drive for Uber until it was fixed. Pull each front belt fully out and let it go three or four times, then buckle both and listen for the chime to stop.

Repair cost (estimate): $300–$900 per retractor

Source: NHTSA complaints filed under seat belts (9).

Rear-view camera image freezes or fails to appearMedium

The back-over prevention cluster is small but consistent: the camera image freezing on screen, or not appearing at all when the car is shifted into reverse. Sometimes a software update fixes it, sometimes the camera module is replaced. It is easy to check and easy for a seller to gloss over — shift into reverse several times during the test drive, from cold and again when warm, and watch that the image appears promptly each time.

Repair cost (estimate): $0–$300 for a software update; $400–$900 for the camera module

Source: NHTSA complaints filed under back over prevention (5).

One car caught fire in a car park minutes after being parkedMedium

A single filing, counted in both the electrical and engine clusters, describes an owner parking, walking away, and the car smoking and then being engulfed in flames. One report is not a pattern and we will not present it as one, but it is on this year's record and a buyer deserves to know it is there. The practical version of this is ordinary: treat any burning smell, any melted-plastic odour, or any scorching under the bonnet as a reason to stop.

Repair cost (estimate): $300–$900 for a wiring or connector repair caught early

Source: NHTSA complaints filed under electrics and electronics (11).

Walk-Away Red Flags

✗A cluster of unrelated warning lights arriving together while driving
✗A seat belt that hangs loose instead of pulling itself back in
✗The belt reminder chiming on with both front belts buckled
✗A rear camera image that freezes or arrives several seconds late
✗Any burnt-plastic or hot-electrical smell from the engine bay

Good Signs

✓A clean scan covering transmission and body modules, not just the engine
✓Both front belts retracting smartly every time you release them
✓The reversing camera appearing instantly on every shift into reverse
✓Remaining factory warranty or a documented extended plan
✓Oil services at a dealer or Mercedes specialist with dates and mileages