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2018 acura MDX vs 2018 kia Sportage

Reliability comparison based on NHTSA recall and complaint records.

Synced 2026-04-29 Source: NHTSA public records Reviewed by ASE-certified contributors
Quick verdict
2018 Acura MDX and 2018 Kia Sportage are nearly tied on reliability data

2018 acura MDX

3.8/5
Reliability score
152 complaints
0 recalls (0 critical)
$10,800 repair exposure
vs

2018 kia Sportage

3.7/5
Reliability score
153 complaints
1 recalls (0 critical)
$10,300 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 (3.8 for the 2018 acura MDX, 3.7 for the 2018 kia Sportage), 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 2018 acura MDX, know what you're getting into on powertrain and cruise control. Those categories have noticeably more complaints than what the 2018 kia Sportage sees, and they're not cheap items when they go.

Going with the 2018 kia Sportage? Watch the engine and steering. The 2018 acura MDX has fewer reports in those categories, so you'd be trading one set of weak spots for another.

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
2018 acura MDX
2018 kia Sportage
engine
28 reports
severe · ~$3,100
61 reports
severe · ~$3,100
electrical
23 reports
severe · ~$850
21 reports
severe · ~$850
powertrain
20 reports
moderate · ~$2,500
14 reports
moderate · ~$2,500
cruise control
11 reports
moderate · ~$600
4 reports
moderate · ~$600
steering
3 reports
moderate · ~$700
9 reports
severe · ~$700
fuel system
11 reports
moderate · ~$1,200
No reports
visibility
6 reports
moderate · ~$350
5 reports
moderate · ~$350
brakes
No reports
8 reports
severe · ~$450
body
3 reports
severe · ~$1,500
4 reports
moderate · ~$1,500

Common questions

Which is more reliable, the 2018 Acura MDX or the 2018 Kia Sportage?

It's close to a tie. Both vehicles score within 0.2 points on our reliability index (3.8 vs 3.7). 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 2018 Acura MDX?

Compared to the 2018 Kia Sportage, the 2018 Acura MDX sees more reported issues in powertrain and cruise control. 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 2018 Kia Sportage?

Compared to the 2018 Acura MDX, the 2018 Kia Sportage has more complaints in engine and steering. 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?

The 2018 Kia Sportage has more active recalls (1 vs 0). Total count is less important than severity, though — a vehicle with one critical recall and zero moderate ones is generally riskier than one with five moderate recalls.

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 $10,800 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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