Quote:
Originally Posted by bcredliner
.....Do you know the history of your X?
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+1
Could be a "rust belt" X with a prior owner who chose to ignore the importance of regular underside cleanings/conditionings. Some are fooled into thinking that their local car wash chassis rinse does the trick when most simply filter and reuse the salt laden water. Clean/seal B4 winter and regular CLEAN water flushes during winter are a must. Spring clean/lube/seal too. BMW spells it all out in the care manual provided with EVERY vehicle yet most owners choose to ignore it.
