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Discussion Starter #1 (Edited)
I was out on the beach yesterday. There had been a very high tide because of a storm of the coast. The water wasn't very very deep but it splashed into my intake manifold and stopped me dead in my tracks. After about 5 minutes it started right up again. We drove very slowly and got out of the water. I thought I might add a Snorkel Kit for my 550 s4 but I can't find one on line. If anyone can tell where I might find one I'd appreciate it.
 

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I'm betting it might be more an electrical problem. Salt water may have shorted the ignition coils to ground. I think the cooling air blows right up through that area. Water splashed up might have been sucked in with the cooling air and dribbled over the coils and their connections. Also, with the charging system built into/around the flywheel it's quite low on the engine not to mention the starter on the bottom front side.

The air intake us about mid-height in the center of the vehicle in a pretty protected location. I think there is a one way rubber valve to let smaller amounts of water out not to mention a circuitous path after any water gets past the air filter. Then air intake opening inside the filter assembly is up a inch or two up from the bottom of the filter's chamber. Not to mention what a blob of salt water ingested into a hot engine would do. You'd be checking shipping costs for my old engine.

Even if you didn't suck in some water a snorkel is probably not a bad idea to get it breathing cleaner air higher up. The air filter housing has a huge sealing area so you'll probably never get it sealed 100%. More water proof might be to relocate an aftermarket filter and intake snorkel. The end of the rubber gooseneck coming up from the engine is 2 1/2" diameter at the end so it's relatively easy to adapt to round pipe or tubing.

(Yes, I just cut & pasted from the other forum.)
 

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Discussion Starter #3
Dane I figure it was water in the intake because it dried out very quick 5 or 10 minutes. I thought it was electrical but when it started so quickly I tought otherwise. I used my pressure washer to clean the saltwater off the engine and again it started right up. I guess I'll be careful when going through water no matter how deep.
 

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The stock skid plates do a good job shielding the cooling air intake side of the engine if you keep a little speed on. The thing I don't like is the big open hole in the center just forward of the engine at least on the two seat version. It's a perfect spot for water to get up in in large volume and the starter and electrical connections are right there waiting to be splashed. I imagine that the full skid plate option from Deere would be good for closing up the holes and protecting the engine from water.

I've had my 550 into water well over the floor boards to the point the bottom half of the gas pedal was under water so I know it can do it in fresh water. The forward motion kept the engine mostly dry and nothing got in the intake but there were no ocean waves splashing about. Also, salt water is a lot tougher on electrical and great for shorting things.
 

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Discussion Starter #5
That's a good idea Dane I'll look into skid plates. Thanks
 
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