BMW part number 11 52 1 264 469 (11521264469) is the Fan coupling [prod. Jan '76 - May '80], a cooling part catalogued for the E3 (2.8L, 2500, 2800), E9 (2.5CS, 3.0CS, 3.0CSi). As of our last check (2026-10-08, bmwfans.info), BMW lists it as no longer available new (NLA). 2 repair guides below.
Not available new according to the status source (a US dealer). NLA can be market-specific, so try the other region below.
No sourced aftermarket equivalent recorded yet. We only list brand numbers that a brand catalog or vendor page explicitly cross-references to this BMW number.
“Ships internationally” is shown only where we read it on the vendor’s own shipping page (checked 2026-09-28); otherwise check with the vendor. Import duties and taxes are the buyer’s responsibility. Amazon links carry our Associates tag, so we may earn a commission; other seller links are not affiliate links today.
Listed directly for E3 and E9 in our data (see Fits). Models below are other listings of the same number.
Same BMW part number, but the source list is truncated or market-specific. More models may apply.
+4 more models not listed by the source.
No forum workaround recorded yet. If you know a thread, the hunt team wants to hear about it.
No kit or reman service recorded yet.
No DIY route recorded yet.
Write-ups and videos from owners, forums and specialists on removing and fitting this part. Summaries are ours; follow the link for the full steps, photos and torque values, and credit goes to the original author.
How to spot a failed viscous fan clutch (temperature climbing in traffic, a hot fan that stops easily) and swap it: shock the 32 mm left-hand-thread nut loose with a hammer on the wrench, then move the blade over with its three Allen screws. Also peeks inside the old clutch at its fill hole.
Tools mentioned: 32 mm box wrench, hammer, Allen keys
Photo procedure for refilling a tired viscous fan clutch with fresh silicone fluid: clip out the bimetal strip and pin to reach the fill hole, refill, refit. Written on a Porsche 928 clutch that the site says is the same design as BMW's; a salvage option rather than an OEM repair.
Tools mentioned: Small screwdriver, C-clamp, silicone viscous-coupling fluid
Written on a Porsche 928 clutch; principle stated to apply to BMW units.
Not listed on bmwpartsdeal (US); ETK data on bmwfans flags 'Delivery discontinued by the factory'.
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