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Airbag24

BMW 3 Series E30 Airbag Control Unit Repair

65 77 1 382 904 · Label

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BMW 3 Series E30 Airbag Control Unit Repair at Airbag24

Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.

Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.

Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.

Repair type

Which repair matches your fault code?

incl. VAT plus shipping

Not sure? Just send us an enquiry or give us a call — we're happy to advise you.

4.8
Google reviews of our shop(271)

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Matching part numbers

Your part number isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.

Repair time

Our estimated repair time for this product is about: 3–4 business days

Which repair matches your fault code?

Below your code you can see what needs to be done.

We can only tell in our workshop whether your unit is defective and can be repaired.

Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.

Specifications

Make
BMW
Model
BMW 3 Series
Series
E30 (1982-1994)
BMW 3 Series E30
Photo: Ivan Oele · CC BY-SA 4.0 · cropped

Shipping & repair from Germany

Airbag24 repairs your component in Berlin — usually within 3–4 working days.

Standard shipping within Germany is free; we normally return your part by UPS.

You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.

If you withdraw from the contract, you bear the cost of returning the item.

Google reviews

4.8
Based on 271 reviewsView all reviews →

What is a BMW 3 Series E30 airbag control unit?

The BMW 3 Series E30 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors signals from crash sensors, stores relevant crash data, and ensures the proper deployment of the airbag modules. Its correct function is essential for the vehicle's passive safety.

This electronic control unit is responsible for monitoring and controlling the entire airbag system in the vehicle. It continuously processes input signals from the sensors.

In the E30 model, the control unit operates with three crash sensors. Two external sensors are mounted near the front strut towers, while the third sensor is integrated directly into the control unit.

Why is the BMW 3 Series E30 airbag control unit defective?

A BMW 3 Series E30 airbag control unit can fail due to aging, internal electronic failures, or after an accident because it was designed as a one-time deployment system. This results in a permanently illuminated airbag warning light and requires a professional BMW 3 Series E30 airbag control unit repair.

Common causes of failure include age-related fatigue of electronic components or corrosion. If the control unit is defective, improper power fluctuations can also cause internal damage, necessitating repair.

After an airbag deployment, the control unit must be replaced because it is a one-time operation and cannot be reused. Resetting the warning light can only be done by replacing it or performing a special repair.

Common error codes for BMW 3 Series E30 airbag control unit repair

If a BMW 3 Series E30 airbag control unit repair is necessary, specific error codes indicate the exact cause of the problem, allowing for a precise diagnosis. These codes directly identify control unit or related wiring faults, not sensor or seat belt pretensioner issues.

  • 323 → Driver airbag supply line faulty → Often slip ring or connection problems between steering column and control unit.
  • B1000 → Control unit communication error → General communication problems between the airbag control unit and other vehicle systems.

These error codes are read via the diagnostic connector system in the engine compartment by bridging pins 1 and 6. The SRS light then flashes to indicate the codes.

Codes like 323 indicate persistent errors that require immediate attention. For a complete diagnosis, specialized BMW diagnostic tools are recommended.

What part numbers are available for the BMW 3 Series E30 airbag control unit repair?

For the repair of the BMW 3 Series E30 airbag control unit, the manufacturer part numbers 65 77 1 382 904, 65771377458 and 65778362119 are recorded for this repair product; all three belong to airbag control units of this model and should be compared with the number on the label of your control unit.

The part number is printed on the label of the airbag control unit and can be stated in the repair order.

Where is the BMW 3 Series E30 airbag control unit installed?

The BMW 3 Series E30 airbag control unit is typically located centrally in the vehicle, beneath the steering wheel cover near the steering column. This position allows for optimal communication with the airbags and crash sensors, which is crucial for safe deployment in an emergency.

The control unit's installation location under the steering wheel cover makes it relatively accessible for diagnosis and replacement. It is firmly bolted in place and connected to the vehicle's electronics via electrical connectors.

The crash sensors, two external and one integrated into the control unit, are positioned to ensure precise crash detection. Proper installation and connection testing by a qualified workshop are essential for operational safety.

Which models are compatible with the BMW 3 Series E30 airbag control unit?

The BMW 3 Series E30 airbag control unit is primarily designed and compatible with the 3 Series E30 models from 1989 to 1994. It was also used modularly in other BMW models of the same generation, including the 5 Series E34, 7 Series E32, 6 Series E24, and the Z1 E30 Roadster.

Compatibility extends to a number of BMW models from the late 1980s and early 1990s, highlighting the modular design of these airbag control units.

To ensure exact compatibility with your vehicle, we recommend checking the vehicle identification number (VIN). This prevents incorrect orders and ensures the correct function of the security system.

Guide

How to create a repair order

4.8

Based on 271 reviews

What our customers say

„Top“

Konstantin WuckertKonstantin Wuckert3 days ago

„Top!“

mirko leistnermirko leistner2 weeks ago

„Ok.“

Zsolt SzabóZsolt Szabó3 weeks ago

„Top service, fast repair and shipping, nice and helpful support, gladly again anytime“

Automatically translated · Original: German

Roman SchneiderRoman Schneidertoday

„Thanks to the team! Very fast processing, flawless shipping, control unit works perfectly again and was above all much cheaper than a new unit.“

Automatically translated · Original: German

Fritz RingFritz Ring2 days ago

„Top advice on the phone, my control unit/Fiat 500 arrived there on a Wednesday, Friday came the message: Defect found and successfully fixed, by Monday I already had it in the mail. The airbag light came on, the workshop…“

Automatically translated · Original: German

Jessica GerdesJessica Gerdes2 days ago

„Serious company, fast and efficient work. Airbag message problem solved following their intervention on my calculator. Thank you.“

Automatically translated · Original: French

Gerald Di NotaGerald Di Nota2 days ago

„An all-round first-class service! The handling with error code U0151 was as simple as can be, the repair was super fast and the return shipping went without delay. After the professional installation by my colleague, all…“

Automatically translated · Original: German

Erkoc EmirErkoc Emir3 days ago

„Airbag control unit had the common internal fault and the warning light was permanently on Super fast repair and return delivery everything works again Definitely a cost-effective alternative Can only recommend it“

Automatically translated · Original: German

Hartwig DewitzHartwig Dewitz3 days ago

„Hello. Everything was very good“

Automatically translated · Original: German

Bernd FaberBernd Faber3 days ago

„Crash data was deleted. Function has been restored. I am very satisfied..“

Automatically translated · Original: German

Jürgen VeberJürgen Veber4 days ago

„Sent in the control unit. Repaired in one day and within 2-3 days the unit was back. Top service thank you“

Automatically translated · Original: German

Sorina GüntherSorina Günther5 days ago

„Top“

Konstantin WuckertKonstantin Wuckert3 days ago
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