EURORELIC

13 63 1 362 598 –Regulator warm-up-phase [prod. Mar '76 - Sep '09]

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

BMW part number 13 63 1 362 598 (13631362598) is the Regulator warm-up-phase [prod. Mar '76 - Sep '09], a fuel part catalogued for the E21 (320i). As of our last check (2026-10-07, bmwpartsdeal.com), BMW lists it as no longer available new (NLA). 2 repair guides below.

⚠ Safety-critical part. Have a qualified mechanic verify fitment and installation before driving.
  1. 1 New from BMW
    No longer available new (per source; may be market-specific).
  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
    None recorded yet
  6. 6 Community fix
    No forum workaround recorded yet
  7. 7 DIY guide
    2 repair how-tos linked (forum, article, video)
  8. 8 Paid hunt
    We search dealers, breakers and forums for you.

Buy new

Not available new according to the status source (US checked). NLA can be market-specific, so try the other region below.

View 13631362598 at bmwpartsdeal.comCross-reference 13631362598 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 13631362598 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.

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 (2)

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. Safety-critical part: have a qualified mechanic check the work.

Forum DIYe21.tricord.be (BMW E21 Community)Difficulty: Mediumwritten for E21

Tech Forum: CIS (K-Jetronic) troubleshooting FAQ ↗

Forum FAQ post on troubleshooting the E21's K-Jetronic injection. It traces hard cold starts to a dirty or misadjusted warm-up regulator and hard warm starts to leaks that lower rest pressure. It also lists the 1980-83 control, system and rest-pressure specs and explains how to clean the regulator and make it adjustable instead of replacing it.

Tools mentioned: CIS fuel pressure test kit

Thread title on the site is the post number ('14510').

e21.tricord.be· link checked 2026-10-08
ArticleBMW Club CZ (document library)Difficulty: Hardwritten for E21

Disassembly and Reassembly of a Bosch Warm up Regulator (1977 320i) ↗

A 12-page owner guide (PDF) to taking apart, cleaning and reassembling the K-Jetronic warm-up regulator from a 1977 320i. It warns that Bosch doesn't treat the part as rebuildable, that the tolerances are tight and that control pressures can shift, so confirm the fault with a pressure gauge first and keep a spare regulator on hand.

Tools mentioned: Flat screwdrivers, needle-nose pliers, 10 mm socket, carb cleaner, K-Jet pressure gauge

Download page verified; the guide itself is a PDF hosted by the club.

by Steven Hauer · en.bmw-club.cz· link checked 2026-10-08

Notes & sources

Last listed $694.28 on bmwpartsdeal (not orderable). SAFETY-CRITICAL (brakes/steering/fuel/airbag): have a qualified mechanic verify fitment and installation.