If you're in there for some reason, maybe.

Otherwise I'd say no. It's quite expensive from what I understand. It won't leave you stranded. It gives you warnings over time with smoke out of the exhaust. So since you have plenty of warning, just do it when you start to notice excessive smoke.

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'08 X5 4.8i - 196k
'15 i3 REX - 95k - Blown AC compressor

'98 323is - 170k - Garaged
'94 325i - 208k - Sold