Thread: CEL came on, code P203a. Active tank replaced. **77k mile update, Passive Tank bad!
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Old 08-21-2015, 07:11 PM
Hbones11 Hbones11 is offline
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Originally Posted by Hbones11 View Post
Been a few months since I posted an update on the DEF sensor codes 203/205. I drove around all winter with the CEL on then when warmer weather came around the CEL and codes disappeared. Definitely something temperature related in the tank. Got about 95k miles on mine now. The price of the tank assembly is ridiculous. Curious if anyone thinks I could get BMW to replace my tank/sensor combo at no cost. I read a few posts/articles mentioning BMW had to replace the tank because of EPA regulations. Thoughts?

Let me refocus this thread. Anyone have experience dealing with a DEF tank replacement related to CEL codes 203/205 and can share their thoughts?
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