BMW part number 54 34 7 025 597 (54347025597) is the Hydraulic hose, master cylinder, left (21;22) – Convertible, a convertible top / sunroof part catalogued for the E46 (320Ci, 323Ci, M3). As of our last check (2026-09-28, bmwpartsdeal.com), it is still available new from BMW. 1 repair guide below.
Listed as orderable new at bmwpartsdeal.com when checked.
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.
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No interchange recorded. That doesn't prove there isn't one; it means we have no sourced match yet.
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.
Owner DIY on replacing the convertible-top hydraulic rams and their lines: trunk lining out, pump fuse pulled, numbered lines disconnected and capped, then the system refilled and cycled to bleed.
Listed $390.25 on bmwpartsdeal.
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