EURORELIC

34 32 1 165 064 –EXPANSION TANK with warning switch [prod. Sep '97 -]

Supersededchecked 2026-10-07source: bmwpartsdeal.commarket: US+EU

BMW part number 34 32 1 165 064 (34321165064) is the EXPANSION TANK with warning switch [prod. Sep '97 -], a brakes part catalogued for the E39 (520d, 520i, 523i), E38 (750i, 750iL, L7). As of our last check (2026-10-07, bmwpartsdeal.com), it has been superseded by 34326758848. Interchange records list it on E52, E65, E66, E67 as well.

⚠ Safety-critical part. Have a qualified mechanic verify fitment and installation before driving.
  1. 1 New from BMW
    Order the replacement number 34326758848
  2. 2 Aftermarket new
    No sourced aftermarket equivalent yet
  3. 3 Used / NOS
    Search live listings on eBay US/DE.
  4. 4 Interchange
    Same BMW number listed on 4 other chassis
  5. 5 Kit / reman
    None recorded yet
  6. 6 Community fix
    No forum workaround recorded yet
  7. 7 DIY guide
    No guide yet
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Replaced by 34326758848. Order the newer number.

  • 🇺🇸 USSupersededbmwpartsdeal.com
  • 🇪🇺 EuropeAvailable newLeebmann24 (DE): "3-4 Working Days" €75.3 (our Leebmann24 lookup of 2026-09-28)leebmann24.com
View 34321165064 at bmwpartsdeal.comCross-reference 34321165064 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 34321165064 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 (successor 34326758848 where shown). 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.

Supersession chain

34321165064→34326758848

Older numbers on the left, newest on the right. Numbers without a record open a lookup.

Used & NOS listings

Cross-model interchange (23)

Listed directly for E39 and E38 in our data (see Fits). Models below are other listings of the same number.

Via successor numberCatalog match (partial list)shared number 34326758848bmwfans.info

Same BMW part number, but the source list is truncated or market-specific. More models may apply.

E65
730d M57N730d M57N2730i M54730i N52735i N62740d M67
E66
730Ld M57N2730Li M54730Li N52735Li N62740Li N62N745Li N62
E38
725tds M51728i M52728iL M52730d M57735i M62735iL M62
E39
523i 2.4 M52525td M51
E67
745LiS N62760LiS N73
E52
ALPINA V8 M62

+19 more models not listed by the source.

Community fixes (0)

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

Kits, reman & retrofits (0)

No kit or reman service recorded yet.

DIY

No DIY route recorded yet.

Repair guides & how-tos (0)

No repair write-up or video linked for this part yet.

Notes & sources

Successor 34326758848 listed at $118.28 on bmwpartsdeal (InStock). SAFETY-CRITICAL (brakes/steering/fuel/airbag): have a qualified mechanic verify fitment and installation.