2019 Acura RDX engine problems
89 owner complaints filed with NHTSA name the engine on the 2019 Acura RDX — 21% of all complaints for this model year.
What owners report
“Premature valve cover gasket oil leak and rear shock absorber oil leak at 43,818 miles At 43,818 miles on 04/25/2026, Acura dealer documented on RO XXX: "Valve cover gasket leaking - Recommend replacement $500+Tax" and "Rear Shock/Strut starting to leak oil residue $435.64". This is premature…”
filed Jul 24, 2026
“There was head gasket failures around cylinders 2 and 3. This allows small amounts of coolant to leak into the engine, causing a distinct startup sputter or a choppy shudder as turbo boost climbs. This is a reoccurring issue with 2019 Acura RDX the vehicle ran hot while driving and was instructed…”
filed Jul 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
B25-049 · Service Bulletin/Repair Instructions · issued Sep 17, 2025
Engine problems in other RDX years
| Year | Reports | Share |
|---|---|---|
| 2025 RDX | 1 | 3% |
| 2023 RDX | 4 | 19% |
| 2022 RDX | 1 | 3% |
| 2021 RDX | 20 | 18% |
| 2020 RDX | 51 | 15% |
| 2018 RDX | 10 | 13% |
| 2017 RDX | 11 | 15% |
| 2016 RDX | 7 | 18% |
| 2015 RDX | 3 | 1% |
| 2014 RDX | 2 | 1% |
| 2013 RDX | 2 | 1% |
| 2010 RDX | 2 | 9% |
Other reported problem areas on the 2019 Acura RDX
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.