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Petrol/Gas BMW B58 Breakdown Video

MileHigh

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I think so as well. I first thought it's the same, but the official Ineos documents all say 'raised air intake' which seemed suspicious to me.

And voila, after some research: knowing full well that it's not a snorkel, they worded it exactly that way.
Yup. As desert running has gotten more popular here in the Western U.S. more and more auto-manufacturers are equipping their off-road models with "raised air intakes". They are very careful to refer to them as such, and start waving their arms violently if an auto journalist uses the word "snorkel" 😄
 

globalgregors

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Snorkel or not a few prep items are prudent before entering the drink, none of which we see in the video above.

At a minimum, a healthy spray of hydrophobic spray (eg WD-40) focusing on electrical conduits, connections and earths etc in the engine bay. For a petrol engine, a water bra or folded tarpaulin combined with steady forward progress will create a pocket of air in the engine bay. In the old days, a plastic bag over the distributor was another sensible measure. Avoiding gear changes whilst mid crossing is key, both due to the loss of momentum (& hence ‘bow’ wave) and the increased chance of water penetrating the gearbox/bell housing.

If water crossings are going to be a regular thing, differential breathers (which on 4wds are routinely fitted with one-way valves) should be extended to a high point in the engine bay. This is a bit of faff but easy to DIY. An elevated air intake such as the Grenadier’s, or those available for Jeeps, can be prepped as a snorkel, simply by sealing it up (eg sealant at airbox join and there are usually drainage/dust holes at the bottom of the airbox that need to be plugged).

The final thing to bear in mind is that gearboxes can ingest water through the top in an extended crossing. It is sensible to refresh gearbox oil at a mimimum, and prudently also diff and transfer box oils, after an expedition with extended or multiple dips.

Some inspiration here:
https://www.abc.net.au/news/2018-07-18/how-a-car-drove-across-darwin-harbour-35-years-ago/10009608

If someone makes it more than 3kms fully submerged be sure to report back :)
 
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