Quote:
Originally Posted by OtisX7
Annoying. My coolant level is low again — I knew the dealer didn’t bother fixing it, they just topped it off. Despite me explaining the issue in detail when I dropped it off (I had refilled coolant multiple times by then). So now I have to undo plugging in this wire harness — it’s a huge pain in the neck — and bring it back to the dealer to resolve this coolant issue. I’m half tempted just to leave the harness in and hope they don’t say anything or don’t care, but just feels like a risk.
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I would not take that risk if I were you. BMW is much more sensitive to engine tuning modifications nowadays, either DME tuning or "piggy backs" like this. Even though the X7 is not considered a popular vehicle to tune, compared to a 3-series. While there are no guarantees, don't make it easy for BMW to flag your vehicle and void your warranty on a $100k vehicle. Just my $.02...