I replaced one of my mechanical tensioners on my 03 last year. BMW switched to hydrolic tensioners at some point because they no longer sold it and I had to buy aftermarket
The defective one was making was a screeching/sqeaking sound when first laying on the throttle
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the stable:
2003 BMW Z4 3.0i
2020 Mitsubishi Outlander SE
2021 Jeep Gladiator Rubicon
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