EURORELIC

21 54 2 282 998 –Hydraulic unit – M5 (S85)

Available newchecked 2026-10-07source: bmwpartsdeal.commarket: US (EU: not checked)

BMW part number 21 54 2 282 998 (21542282998) is the Hydraulic unit – M5 (S85), a drivetrain part catalogued for the E63 (M6), E64 (M6), E60 (M5), E61 (M5). As of our last check (2026-10-07, bmwpartsdeal.com), it is still available new from BMW. 1 kit or reman option, 1 repair guide below.

  1. 1 New from BMW
    Listed as orderable new by the status source.
  2. 2 Aftermarket new
    No sourced aftermarket equivalent yet
  3. 3 Used / NOS
    Search live listings on eBay US/DE.
  4. 4 Interchange
    No cross-model match in our data
  5. 5 Kit / reman
    1 kit or service option
  6. 6 Community fix
    No forum workaround recorded yet
  7. 7 DIY guide
    1 repair how-to linked (forum, article, video)
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Listed as orderable new at bmwpartsdeal.com when checked.

View 21542282998 at bmwpartsdeal.comCross-reference 21542282998 on RealOEMCatalog diagram (bmwfans.info)

Aftermarket options (0)

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.

Where to buy

Every link opens 21542282998 at that seller: “View” = the part’s own page, “Look up” = the seller’s part-number page, “Search” = the seller’s search pre-filled with the number. You can order from either region.

United States

Europe (DE · UK · DK)

“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.

Used & NOS listings

Cross-model interchange (0)

No interchange recorded. That doesn't prove there isn't one; it means we have no sourced match yet.

Listed directly for E63 and E64 and E60 and E61 in our data (see Fits). Models below are other listings of the same number.

Community fixes (0)

No forum workaround recorded yet. If you know a thread, the hunt team wants to hear about it.

Kits, reman & retrofits (1)

Replacement kit
SMG III hydraulic unit rebuild (BMW 21542282998; new pump motor 23017841032, new slave cylinder, rebuilt position sensor; E60/E61 M5, E63/E64 M6 2006–2010; incl. $400 refundable core)
GTE Engineering
$3,480
View product page on gte-engineering.com ↗

DIY

No DIY route recorded yet.

Repair guides & how-tos (1)

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.

Forum DIYM5BoardDifficulty: Hardwritten for E60 / E63 / E64

SMG pump motor replacement ↗

Owner thread on replacing only the electric motor on the S85 SMG hydraulic pump (motor set 23017841032) instead of the whole unit; the hydraulic system has to be depressurised and bled with dealer-level software afterwards.

Tools mentioned: Diagnostic software for depressurise/bleed, Pentosin CHF 11S

Search-engine copy only (site answers scripted requests with a JS challenge).

m5board.com· link checked 2026-10-08 · read via search-engine copy (forum blocks direct access)

Notes & sources

Listed $8107.61 on bmwpartsdeal.