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Ask Smithy Xtra BMW X5D cruise control

When driving in cruise control mode (which I do all the time) I have noticed that sometimes my BMW X5d feels like it's not driving smoothly. It?s as if it's trying to brake or slow down and then it drives normally again. As I said it's not often and is very subtle, and is a rhythmic cycle every 5-10 seconds. Any ideas? BMW want to troubleshoot and that always costs thousands.

The BMW dealer is the best placed to work out what’s causing your problem. If you’re concerned about the potential cost of his work ask for a quote and make a decision based on that. You could place a time limit, of say, three hours on him and ask for a report at the end of that time so you can decide on what you then want to do. Without knowing the cause of the problem before you start it’s hard to say how long the investigation might take.

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