My 2008 2.5i Auto had what felt like catastrophic engine failure recently @ 65000klms. There was an explosion, smoke like a shuttle launch, & lots og black fluid on the ground!
The dealer correctly diagnosed the fault over the phone as being an Injector retaining bolt failure, & was able to correct the problem soon after procuring the part.
I’m alittle worried that this may be a common failure in this engine, & if so maybe carrying a spare bolt or two might be wise when travelling long distance. Anyone else have any info or experience???
Australia4WD Forums

Tip:

Air Intake<br> Water and engines do not mix very well, and when they do it almost always results in bent pistons, valves and crankshaft commonly called “hydro-locking”. If you think this sounds expensive you're right. The positioning of the air intake is critical to how well a vehicle can handle a crossing. For example certain Toyota 4x4 models have their air intake directly behind the headlight, which is great to allow cold air into the engine but unfortunately is equally as great in directing water into the engine (An easy fix for this is to remove the plastic tubing from the air cleaner to the headlight when crossing water). NEVER attempt a water crossing where the water depth is above the air intake height. If you intend doing regular water crossings, its a good idea to fit a snorkel as it raises the air intake to your roof line. It doesn't mean you can use your xx4 as a submarine!