![]() This very small movement stretches the rear main seal opening just slightly, but if left for a long time, can permanently deform your rear main seal causing a leak around the crank shaft. Also, when your vehicle is not running, the crank shaft will sit down on the bearing surfaces they ride in. Without a regular oil bath, your rear main seal can become dry and hard causing it to not seal properly around the rotating crank shaft. Regularly driving your vehicle will keep the oil circulating though the engine and this will help keep all the seals soft and conditioned. Characters 12 17: Sequential Production Number. ![]() Char 11 - 17 - BMW Serial Number - often used for BMW parts look-up (last 7 digits of VIN). This will show correctly on the BMW vin decoder output. The 0 (number) is used in 10th place to indicate its a Europeian model). Here's info on rear seal failures and their causes: Įxcerpt: A lack of use is one of the silent killers of the seals and gaskets in the engine of your vehicle. There is no date code for European built BMWs. can decode make, model, model year, body, trim, engine, transmission and other car parts in Europe, US as well as on other markets. ![]() "Rubber breaks down over time, especially exposed to UV."Īnd "rubber" is a general catch-all for petroleum-based components. Lookup vehicle identification number is the first thing you should do before you buy a used car. ![]() And if equipment isn't run then they can also dry up: seals in AC systems are one of the more extreme examples of this it's why people are encouraged to run AC system regularly.Īnd THEN as a general statement I mentioned UV as it's own issue (not tied into the rear seal): Seals can deform if sitting in the same location for extended for long periods of time. "I'm hoping that use will help restore its distortion" "it's got a main seal leak that I'm positive is because it sat for so long" ![]()
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