Main timing chain tensioner spring for BMW E46 (BMW original part)

Chain tensioner spring between the crankshaft and the exhaust camshaft,

For Saloon & Touring:
- 320 i M52 (Saloon only)
- 323 i M52
- 325 i/xi M54
- 328 i M52
- 330 i/xi M54

For Coupé & Convertible:
- 320 Ci M54
- 323 Ci M52
- 325 Ci M54
- 328 Ci M52 (Coupé only)
- 330 Ci M54

For Compact:
- 325 ti M54 It is strongly recommended to replace this part, which wears with time and distance and thus slackens the main timing chain
Easy replacement, with no disassembly of the timing system required
Located inside the chain tensioner