My swirl flap arm has also been hanging off and a bit of oil build up where the arm sits since I bought my v70 in December 2019 and I've done over 40000 miles since then and it has never caused any performance or running issues and no engine light, as its a big and costly job to replace the flaps I personally would leave it if its not causing any problems 
__________________
Current: 2007 Volvo V70 D5 SE Geartronic 137,000 miles
2008 Volvo S80 D5 SE Geartronic 10,100miles
Previous: 2016 Volvo V40 D4 R-Design 190bhp now Polestar to 200 bhp 40,000 miles Sold
2007 Volvo C30 T5 SE Sport 101,000 miles Sold
|