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Ls 400


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why not have a dye added to your aircon and a few months later go back and have it inspected.. the dye will show up under ultraviolet light.

if it does leak and leak on the alternator it will soon show up under that light

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Correct me if I'm incorrect, but the stuff in an aircon system is a gas at normal atmospheric pressure which if it's escaping into the air it would be. The only liquid is about 8fl oz's (about 1 teacup full) of compressor oil which I doubt would do much harm to an alternator!

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Actually, it's the POWER STEERING PUMP which usually develops a leak, and if not fixed, usually ends up leaking onto the alternator (which is directly below), and then you have to replace both!

It's one of the most common problems on LS400s.

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