Vemo V20-71-0004 Starter Relay

Starter Relay for BMW Charging and Starting Systems

The Vemo V20-71-0004 starter relay is a 5-pin electrical relay used in BMW charging and starting circuits. It features a violet housing, yellow color identification, and a compact 26 mm x 26 mm footprint for applications that require a 12 V relay with clamp 87A terminal layout.

VEMO product line components are built for electrical system service work where correct terminal configuration, housing shape, and relay function matter. This starter relay is a direct-fit style replacement for select BMW models, including BMW 318i, 325i, 540i, M3, M5, Z3, and Z4 applications listed below.

• Part number: V20-71-0004
• Starter relay for 12 V electrical systems
• 5 used contacts with clamp 87A configuration
• Violet housing with yellow relay identification
• Compact size: 26 mm length, 26 mm width, 36 mm height
• Lightweight relay design at 0.030 kg

Detailed Product Overview

Vemo V20-71-0004 is a starter relay designed for BMW electrical, charging, and starting systems where the relay must match the vehicle’s connector and terminal layout. The 5-pin design and clamp 87A specification are important for proper circuit routing, while the violet housing helps identify the relay type during service. If you are replacing a BMW starter relay on a 318i, 325i, 525i, 540i, M3, M5, Z3, or Z4, this part number V20-71-0004 should be checked against the original relay markings and connector style before installation.

This part cross-references Four Seasons 20924 for the same application.

Common Issues This Relay May Address

• No-crank condition when the starter circuit is not receiving relay output
• Intermittent starting caused by worn relay contacts
• Starter engagement problems related to electrical relay failure
• Relay replacement needs after heat or age-related contact wear
• BMW starting system faults tied to incorrect relay terminal configuration

Installation Notes and Tips

Verify the relay’s 5-pin layout, clamp 87A terminal designation, and physical dimensions against the original unit before installation. Confirm 12 V system requirements and compare the housing color and connector orientation to the removed relay. For BMW fitment, use the vehicle’s original relay location and part markings to confirm application accuracy.

• Fits 2004-2008 BMW Z4
• Fits 1997-2003 BMW 540i
• Fits 2000-2003 BMW M5
• Fits 1991-1993 BMW M5
• Fits 1996-2002 BMW Z3
• Fits 1998-2001 BMW 740iL
• Fits 1993-1995 BMW 740iL
• Fits 1995-1999 BMW M3
• Fits 1988-1991 BMW M3
• Fits 1994-1997 BMW 840Ci
• Fits 1994-1996 BMW 318i
• Fits 1991-1992 BMW 318i
• Fits 1985 BMW 318i
• Fits 1993-1995 BMW 325i
• Fits 1987-1991 BMW 325i
• Fits 1989-1995 BMW 525i
• Fits 1994-1995 BMW 530i
• Fits 1993-1994 BMW 740i
• Fits 1990-1993 BMW 535i
• Fits 1991-1992 BMW 318is
• Fits 1991-1992 BMW 735i
• Fits 1985-1988 BMW 735i
• Fits 1990-1992 BMW 735iL
• Fits 1988-1991 BMW 325is
• Fits 1988-1991 BMW 325iX
• Fits 1985-1989 BMW 635CSi
• Fits 1988 BMW 535is
• Fits 1985-1987 BMW 325e
• Fits 1983-1984 BMW 533i

Quality Assurance

Vemo electrical components are cataloged for service replacement use with attention to connector style, terminal count, and application-specific fitment. Part number V20-71-0004 is listed with BMW interchange references for verification during parts matching.