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2014 mercedes-benz ML-Class vs 2014 toyota 4Runner

Reliability comparison based on NHTSA recall and complaint records.

Synced 2026-04-29 Source: NHTSA public records Reviewed by ASE-certified contributors
Quick verdict
2014 Mercedes-Benz ML-Class and 2014 Toyota 4Runner are nearly tied on reliability data

2014 mercedes-benz ML-Class

4.0/5
Reliability score
72 complaints
0 recalls (0 critical)
$9,450 repair exposure
vs

2014 toyota 4Runner

4.0/5
Reliability score
76 complaints
0 recalls (0 critical)
$6,150 repair exposure

Stories from the shop

Look, these two are running close enough that you'd be fine either way. Reliability scores are within rounding distance (4.0 for the 2014 mercedes-benz ML-Class, 4.0 for the 2014 toyota 4Runner), and they've each got their own laundry list of weak spots. There's no clean winner here on the data alone.

If you're leaning 2014 mercedes-benz ML-Class, know what you're getting into on engine and powertrain. Those categories have noticeably more complaints than what the 2014 toyota 4Runner sees, and they're not cheap items when they go.

Going with the 2014 toyota 4Runner? Watch the electrical and airbags. The 2014 mercedes-benz ML-Class has fewer reports in those categories, so you'd be trading one set of weak spots for another.

On the dollars-and-cents side, total repair exposure across the top problem areas runs 1.5x higher on the 2014 mercedes-benz ML-Class. That's the number to keep in mind when you're pricing the deal — a $2,000 difference in purchase price disappears the first time you're staring at a transmission rebuild.

Bottom line: pick based on use case more than the spec sheet. If you tow heavy and don't want to think about it, that's one calculation. If you're a daily driver and want the cheapest path forward, that's another. Both of these will get you down the road. We're just telling you where each one is most likely to break.

— ProblemsByVin editorial team, drawing on the NHTSA data and shop experience.

Side-by-side by problem area

Category
2014 mercedes-benz ML-Class
2014 toyota 4Runner
electrical
19 reports
moderate · ~$850
24 reports
moderate · ~$850
airbags
4 reports
severe · ~$1,100
8 reports
severe · ~$1,100
steering
4 reports
severe · ~$700
7 reports
moderate · ~$700
engine
8 reports
moderate · ~$3,100
No reports
fuel system
4 reports
moderate · ~$1,200
4 reports
moderate · ~$1,200
body
No reports
7 reports
severe · ~$1,500
powertrain
4 reports
moderate · ~$2,500
No reports
brakes
No reports
3 reports
moderate · ~$450
visibility
No reports
3 reports
severe · ~$350

Common questions

Which is more reliable, the 2014 Mercedes-Benz ML-Class or the 2014 Toyota 4Runner?

It's close to a tie. Both vehicles score within 0.2 points on our reliability index (4.0 vs 4.0). At this margin, either choice is defensible — base your decision on the specific failure modes that matter to you.

What goes wrong more often on the 2014 Mercedes-Benz ML-Class?

Compared to the 2014 Toyota 4Runner, the 2014 Mercedes-Benz ML-Class sees more reported issues in engine and powertrain. That doesn't mean it's a bad truck — it means those are the categories worth budgeting for if you go that direction.

What goes wrong more often on the 2014 Toyota 4Runner?

Compared to the 2014 Mercedes-Benz ML-Class, the 2014 Toyota 4Runner has more complaints in electrical and airbags. Whether that's a deal-breaker depends on the cost and severity — see the comparison table above for repair cost ranges.

Which has more recalls?

Both vehicles have 0 active recalls. Total recall count alone isn't a great signal — what matters is severity. See the recall counts by severity in the comparison table.

Is an extended warranty worth it on either of these?

Both vehicles are out of factory bumper-to-bumper coverage at this point. Combined repair exposure across the top problem categories runs around $9,450 on the higher-risk vehicle. A quality service contract typically costs $1,800–3,500 over 3 years, so a single major failure usually pays for the contract. The math favors warranty coverage on whichever vehicle you choose, especially if you plan to keep it past 100,000 miles.

Related comparisons

Reliability scores, complaint counts, and severity ratings derived from the NHTSA public records database. "Repair exposure" is the sum of average independent-shop repair costs across each vehicle's tracked problem categories and is intended as a relative comparison, not an exact prediction. Editorial commentary auto-generated from the data and reviewed by ASE-certified contributors. Some links on this page are affiliate links.
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