car judders on tick over.hold back wen driving butvsometimes drives perfect

What is your question?

somtimes it will hold back for a day or so then all if a sudden it will drive perfect for a day.had service every 10000 miles.no smoke from exhausts

What makes this problem better or worse?

nothing

How long has your 2002 BMW X5 had this problem?

2 weeks on and of