Mitsubishi ASX Underbody Protection: What Should You Protect First?
A Mitsubishi ASX does not need protection everywhere underneath the vehicle. The useful approach is to identify which components are most exposed to direct road impacts and protect those areas first.
For the Mitsubishi ASX applications currently listed by UnderbodyGuards, the main protection zones are the engine, gearbox and radiator area. However, the exact coverage differs between 2010–2022 and 2023–2026 models, so protection priorities should always be considered together with the vehicle generation.
What Should You Protect First on a Mitsubishi ASX?
For most Mitsubishi ASX owners, the practical order of priority is:
- Engine and oil pan — first priority because loss of engine oil after an impact can quickly become a serious mechanical problem.
- Gearbox — important because it remains exposed farther back underneath the vehicle after an obstacle has passed the front engine area.
- Radiator and lower front section — relevant where the vehicle-specific protection extends forward to shield vulnerable cooling-system components.
This does not mean every ASX requires three separate plates. On the products currently available for the ASX, several protection zones are combined into one vehicle-specific assembly.
Priority 1: Engine and Oil Pan Protection
The lower engine area is normally the first place to protect because it can be exposed when the vehicle passes over a pothole edge, embedded stone, frozen road obstacle or raised section of road.
The oil pan is especially important. A strong direct impact can deform or puncture it. If engine oil is lost and the vehicle continues to run, the resulting damage can be substantially more serious than the initial underbody strike.
Engine protection becomes particularly relevant when the ASX is regularly driven on:
- damaged asphalt with deep potholes;
- gravel roads;
- uneven rural roads;
- construction-site access roads;
- snow-covered roads with hidden hard obstacles;
- roads with raised centres or deep wheel tracks.
Priority 2: Gearbox Protection
The gearbox should not be treated as protected simply because the engine area is covered.
An obstacle can clear the front part of the underbody and then strike the transmission housing farther back. This is particularly relevant on uneven roads where the vehicle changes pitch as the front and rear wheels pass over different heights.
For both Mitsubishi ASX applications currently listed in our catalog, gearbox protection is combined with engine protection. That is a useful arrangement because it creates a larger protected drivetrain area instead of shielding only the oil pan.
Why Engine and Gearbox Protection Work Well Together
An underbody impact does not always occur at one fixed point. Vehicle load, suspension movement, road angle and obstacle shape determine where contact takes place.
A wider plate covering both the engine and gearbox can therefore protect against a broader range of impact positions than a small engine-only shield.
This is especially relevant for potholes and raised road surfaces, where the contact point can move rearward as the vehicle passes over the obstacle.
Priority 3: Radiator Protection on 2023–2026 Models
The current Mitsubishi ASX 2023–2026 protection extends beyond the engine and gearbox to include the radiator area.
This front section is exposed to a different combination of hazards:
- stones and debris entering from the front underside;
- hard snow and ice accumulation;
- high curbs or road edges;
- deep potholes combined with suspension compression;
- loose material thrown toward the lower front of the vehicle.
Radiator protection is therefore not simply an additional plate for the sake of having more coverage. It protects a vulnerable front-underbody zone that is part of the later ASX layout.
2010–2022 vs 2023–2026: The Protection Priorities Are Different
| ASX application | Current protection | Main purpose |
|---|---|---|
| 2010–2022 | Engine + gearbox | Protect the main lower drivetrain area |
| 2023–2026 | Engine + gearbox + radiator | Protect the drivetrain and lower front cooling area |
Mitsubishi ASX 2010–2022: Engine and Gearbox First
For the 2010–2022 ASX application, the current vehicle-specific solution combines engine and gearbox protection in a steel plate with a listed thickness of 2.5 mm.
The plate also has an oil-sump service opening. This is relevant because routine maintenance access is part of a practical skid plate design, not just impact protection.
View Mitsubishi ASX 2010–2022 engine and gearbox skid plate
Mitsubishi ASX 2023–2026: Engine, Gearbox and Radiator Protection
For 2023–2026 models, the listed vehicle-specific plate protects the engine, gearbox and radiator area. The catalog specification is 2 mm steel.
For this generation, the available vehicle-specific plate combines these protection zones into one integrated front-underbody solution.
View Mitsubishi ASX 2023–2026 engine, gearbox and radiator skid plate
Do You Need Underbody Protection for Normal Roads?
Not every Mitsubishi ASX requires additional steel protection simply because a compatible product exists.
If the vehicle is driven almost exclusively on smooth maintained roads, direct contact with the underside is relatively unlikely. The case for additional protection becomes stronger when poor road conditions are a regular part of normal use.
Typical examples include daily travel on damaged asphalt, rural roads, gravel, deep winter snow or routes where road repairs frequently leave raised surfaces and sharp edges.
When Potholes Make Protection More Valuable
A pothole can cause underbody contact even when the wheel itself does not strike the centre of the vehicle.
As a wheel drops into a hole, suspension movement can temporarily reduce the distance between the road and the underside. A sharp road edge can then reach the oil pan or gearbox area.
The risk increases with speed and vehicle load.
For more detail, read Can Potholes Damage the Oil Sump, Gearbox or Underbody?
What About Gravel Roads?
Gravel roads create both repeated stone strikes and occasional stronger impacts from embedded stones, deep ruts or raised road centres.
An ASX that only uses well-maintained gravel occasionally has a different risk profile from one that travels rough gravel routes every week.
For regular gravel use, engine and gearbox protection becomes more useful because the probability of direct contact increases.
See our guide to underbody protection for gravel roads.
For a Mitsubishi ASX-specific guide covering potholes, gravel, broken asphalt, snow and frozen winter ruts, see our Mitsubishi ASX underbody protection guide for potholes, gravel and winter roads.
Protection Should Not Create a New Problem
A skid plate needs to protect vulnerable components without creating unnecessary contact points or interfering with normal vehicle operation.
After installation, there should be suitable clearance around the exhaust, drivetrain, suspension and other moving or heat-producing components.
If a newly installed plate rattles or vibrates, the cause should be checked rather than accepted as normal.
For maintenance and installation considerations, see Will a Skid Plate Affect Cooling, Noise or Vehicle Service?
Do Not Choose an ASX Skid Plate by Thickness Alone
The 2010–2022 ASX product is listed at 2.5 mm steel, while the 2023–2026 product is listed at 2 mm steel. This does not mean the older plate is a stronger upgrade that should be fitted to the newer vehicle.
They are different vehicle-specific products with different shapes, mounting layouts and protected areas.
Correct fitment comes before nominal thickness.
For a detailed comparison of the 2010–2022 and 2023–2026 applications, including mounting differences, service access and why the two skid plates are not interchangeable, see our Mitsubishi ASX skid plate fitment guide.
What Should You Check Before Ordering?
Before selecting Mitsubishi ASX underbody protection, confirm:
- the exact production year;
- the vehicle configuration;
- which zones the product actually protects;
- whether the vehicle has suspension, exhaust or underbody modifications;
- service-access requirements;
- that the mounting arrangement matches the vehicle.
If the exact configuration is uncertain, use UnderbodyGuards GuardPass™ before ordering.
What Is the Best Protection Priority for a Mitsubishi ASX?
Start with the engine and oil-pan area because a direct impact there can create immediate mechanical risk. Protect the gearbox at the same time when the vehicle-specific system covers both areas.
On 2023–2026 models, radiator protection is also part of the current front-underbody solution and should be considered together with engine and gearbox coverage.
The correct priority is therefore determined by the ASX generation and its actual underbody layout rather than by trying to install the maximum possible number of plates.
For the full generation and product overview, see our Mitsubishi ASX underbody protection guide.
