Original BMW Turn Signal Bulb Socket for BMW 3 Series E36, M3, and 5 Series E34 (1989–1999)

Holding and powering the turn signal bulb, Original BMW bulb socket 63-13-1-384-100 is the electrical connector inside the turn signal assembly on the E36 3 Series, the E36 M3, and the E34 5 Series. It locks the bulb into the lamp and provides the electrical contact that lights the signal when you use the stalk. BMW began producing this socket in May 1988, and the same number has carried through both chassis since. Each socket weighs 17 grams (0.6 oz), is made in Germany, and is priced each and sold individually.

Original BMW Parts carry a 24-month parts warranty.

A failed bulb is the usual suspect when a signal stops working, but the socket is easy to overlook. Typical socket faults include an intermittent or dead turn signal from poor electrical contact, a burnt or melted socket housing from heat or electrical resistance, and corrosion or moisture that leaves the bulb dim or flickering. On the E36, BMW's parts data covers the M42, M44, M50, M52, S50, and S52 engines, including the 318ti compact and the convertible. On the E34, it spans the 525i with the M20 and M50, the 530i and 540i with the M60, the 535i with the M30, and the M5 3.6 with the S38.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 63-13-1-384-100
• BMW part name: bulb socket
• Application: turn signal light
• Weight: 17 g (0.6 oz)
• Production start: May 1988
• Country of manufacture: Germany
• Priced each and sold individually
• Warranty: 24 months

Common Questions

My bulb is new but the signal still flickers. Could the socket be the cause?
Yes. Poor contact, corrosion, or moisture in the socket can cause dim, flickering, or intermittent signals even with a good bulb.

Does this come in a pair?
No. It is priced each and sold individually.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.