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CALORSTAT BY VERNET Brake Warning Light Switch BS4528

Brake Warning Light Switch

Compatible with BMW 3 (E21) , BMW 3 (E30) , BMW 3 Touring (E30) Show more info
Ensures your brake warning light functions correctly, alerting you to potential brake system issues.
4.69 EUR
inc. VAT 21%
In stock 4
Delivery 1 day (23.03.2026)
PN BS4528
Make CALORSTAT BY VERNET
EAN 3531650014088

This brake warning light switch from CALORSTAT by Vernet is designed to reliably indicate when there might be an issue with your vehicle's braking system. When the brake fluid level drops or the brake system experiences a malfunction, this switch activates the dashboard warning light, providing a crucial visual alert to the driver. Proper functioning of the brake warning light is essential for vehicle safety. It serves as an early warning system, prompting you to inspect your brakes and address any problems before they become critical. This switch is a direct replacement for the original component, ensuring compatibility and performance. CALORSTAT by Vernet is known for producing quality components that meet stringent automotive standards. This switch is built to last, offering dependable service and contributing to the overall safety and integrity of your braking system.

  • Activates dashboard brake warning light
  • Monitors brake fluid level and system pressure
  • Essential for driver safety alerts
  • Direct fit replacement
  • Reliable performance from CALORSTAT by Vernet
  • Helps identify potential brake system issues early
  • Contributes to safe braking operation
Operating mode
mechanical
Thread size
M12x1.0
Sensor type
closed type sensor
  • BMW
    • 3 (E21)
      • 315 (55kW/75PS)
    • 3 (E30)
      • 316 (Ecotronic) (66kW/90PS)
      • 318 i (75kW/102PS)
      • 318 i (77kW/105PS)
      • 320 i (95kW/129PS)
      • 320 i (92kW/125PS)
      • M3 2.3 (143kW/195PS)
      • M3 2.3 (147kW/200PS)
      • 323 i (102kW/139PS)
      • 323 i (110kW/150PS)
      • M3 2.3 (158kW/215PS)
      • 325 i X (125kW/170PS)
      • 325 i (125kW/170PS)
      • 325 i X (126kW/171PS)
      • 325 i (126kW/171PS)
      • 325 e 2.7 (95kW/129PS)
      • 316 (66kW/90PS)
      • M3 EVO I 2.3 (162kW/220PS)
    • 3 Touring (E30)
      • 320 i (95kW/129PS)
      • 325 i (125kW/170PS)
      • 325 i X (125kW/170PS)
    • 5 (E12)
      • 518 (66kW/90PS)
      • M535 i (160kW/218PS)
    • 5 (E28)
      • 518 (66kW/90PS)
      • 518 i (77kW/105PS)
      • 520 i (92kW/125PS)
      • 520 i (95kW/129PS)
      • 524 d (63kW/86PS)
      • 524 td (85kW/115PS)
      • 525 i (110kW/150PS)
      • 525 e (90kW/122PS)
      • 525 e (92kW/125PS)
      • 525 e (95kW/129PS)
      • 528 i (135kW/184PS)
      • 535 i, M 535 i (136kW/185PS)
      • 535 i, M 535 i (141kW/192PS)
      • 535 i (162kW/220PS)
      • M5 (210kW/286PS)
    • 5 (E34)
      • 520 i (95kW/129PS)
      • 524 td (85kW/115PS)
    • 6 (E24)
      • 628 CSi (135kW/184PS)
      • 635 CSi (160kW/218PS)
      • 633 CSi (145kW/197PS)
    • 7 (E23)
      • 728 i (135kW/184PS)
      • 730 (135kW/184PS)
      • 733 i (145kW/197PS)
      • 735 i (141kW/192PS)
    • 7 (E32)
      • 730 i, iL (145kW/197PS)
      • 730 i, iL (138kW/188PS)
      • 735 i, iL (155kW/211PS)
      • 735 i, iL (162kW/220PS)
      • 750 i, iL V12 (220kW/300PS)
    • 3 Kabriolets (E30)
      • 320 i (95kW/129PS)
      • 325 i (125kW/170PS)
      • 325 i (126kW/171PS)
      • M3 2.3 (143kW/195PS)
  • MERCEDES-BENZ
    • T1 Furgons (601, 611)
      • 210 2.3 (77kW/105PS)
      • 208 D 2.3 (58kW/79PS)
      • 208 D 2.3 (60kW/82PS)
      • 210 D 2.8 (70kW/95PS)
      • 210 D 2.8 (72kW/98PS)
      • 207 D 2.4 (53kW/72PS)
      • 209 D 2.9 (65kW/88PS)
      • 210 2.3 (70kW/95PS)
    • T1 Platforma/Šasija (B602)
      • 308 D 2.3 (58kW/79PS)
      • 308 D 2.3 (60kW/82PS)
      • 310 D 2.9 (70kW/95PS)
      • 310 D 2.9 (72kW/98PS)
      • 307 D 2.4 (53kW/72PS)
      • 309 D 3.0 (65kW/88PS)
    • T1 Platforma/Šasija (601)
      • 208 D 2.3 (60kW/82PS)
      • 210 D 2.9 (70kW/95PS)
      • 208 D 2.3 (58kW/79PS)
      • 210 D 2.8 (72kW/98PS)
      • 209 D 2.9 (65kW/88PS)
      • 210 2.3 (70kW/95PS)
    • T1 Furgons (B602)
      • 310 D 2.9 (72kW/98PS)
      • 308 D 2.3 (58kW/79PS)
      • 307 D 2.4 (53kW/72PS)
      • 309 D 3.0 (65kW/88PS)
      • 310 D 2.9 (70kW/95PS)
      • 308 D 2.3 (60kW/82PS)
    • T1 Autobuss (B601)
      • 210 2.3 (70kW/95PS)
      • 210 2.3 (77kW/105PS)
      • 208 D 2.3 (601.371, 601.372, 601.376, 601.377) (58kW/79PS)
      • 208 D 2.3 (60kW/82PS)
      • 210 D 2.8 (70kW/95PS)
      • 210 D 2.8 (72kW/98PS)
      • 209 D 2.9 (65kW/88PS)
    • T1 Autobuss (602)
      • 308 D 2.3 (60kW/82PS)
      • 310 D 2.9 (70kW/95PS)
      • 310 D 2.9 (72kW/98PS)
      • 308 D 2.3 (58kW/79PS)
  • VOLVO
    • 240 (P242, P244)
      • 2.1 Turbo (114kW/155PS)
      • 2.3 (81kW/110PS)
      • 2.3 (83kW/113PS)
      • 2.3 (96kW/131PS)
      • 2.4 Diesel (60kW/82PS)
      • 2.3 i Cat (85kW/115PS)
      • 2.4 Diesel (58kW/79PS)
      • 2.0 (60kW/82PS)
      • 2.0 (76kW/103PS)
      • 2.3 (85kW/115PS)
      • 2.0 (100kW/136PS)
    • 240 Kombi (P245)
      • 2.1 Turbo (114kW/155PS)
      • 2.3 (81kW/110PS)
      • 2.3 (83kW/113PS)
      • 2.3 (96kW/131PS)
      • 2.4 Diesel (60kW/82PS)
      • 2.3 i Cat (85kW/115PS)
      • 2.0 (60kW/82PS)
      • 2.0 (76kW/103PS)
      • 2.3 (85kW/115PS)
      • 2.3 Cat (100kW/136PS)
      • 2.0 (100kW/136PS)
    • 740 (744)
      • 2.3 (83kW/113PS)
      • 2.3 (84kW/114PS)
      • 2.3 (96kW/131PS)
      • 2.3 (114kW/156PS)
      • 2.4 Diesel (60kW/82PS)
      • 2.3 (85kW/115PS)
      • 2.3 Turbo (115kW/156PS)
      • 2.3 (86kW/117PS)
      • 2.3 (117kW/159PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.3 Turbo (140kW/190PS)
      • 2.3 (111kW/151PS)
      • 2.0 (89kW/121PS)
      • 2.3 Turbo (134kW/182PS)
      • 2.0 (86kW/117PS)
      • 2.0 (76kW/103PS)
      • 2.0 (118kW/160PS)
      • 2.0 (120kW/163PS)
    • 740 Kombi (745)
      • 2.3 (83kW/113PS)
      • 2.3 (84kW/114PS)
      • 2.3 (96kW/131PS)
      • 2.3 Turbo (115kW/156PS)
      • 2.4 Diesel (60kW/82PS)
      • 2.4 Turbo-Diesel (80kW/109PS)
      • 2.0 (82kW/112PS)
      • 2.3 (85kW/115PS)
      • 2.3 (114kW/156PS)
      • 2.4 TD Interc. (90kW/122PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.3 (96kW/131PS)
      • 2.3 (117kW/159PS)
      • 2.3 Turbo (134kW/182PS)
      • 2.3 Turbo (140kW/190PS)
      • 2.3 (111kW/151PS)
      • 2.0 (89kW/121PS)
      • 2.0 (86kW/117PS)
      • 2.0 (76kW/103PS)
    • 760 (704, 764)
      • 2.3 Turbo (134kW/182PS)
      • 2.8 (105kW/143PS)
      • 2.8 (115kW/156PS)
      • 2.4 Turbo Diesel (82kW/112PS)
      • 2.4 TD Interc. (85kW/115PS)
      • 2.8 (764) (108kW/147PS)
      • 2.3 Turbo (127kW/173PS)
      • 2.3 (121kW/165PS)
    • 760 Kombi (704, 765)
      • 2.8 (765) (105kW/143PS)
      • 2.8 (765) (115kW/156PS)
      • 2.4 TD Interc. (765) (85kW/116PS)
      • 2.3 Turbo (134kW/182PS)
    • 940 (944)
      • 2.0 (82kW/112PS)
      • 2.3 (96kW/131PS)
      • 2.3 (85kW/116PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.4 TD Intercooler (90kW/122PS)
      • 2.4 Turbo Diesel (80kW/109PS)
      • 2.3 Turbo (140kW/190PS)
      • 2.3 (114kW/156PS)
      • 2.4 D (60kW/82PS)
      • 2.0 Turbo (114kW/155PS)
    • 940 Kombi (945)
      • 2.0 (82kW/112PS)
      • 2.3 (96kW/131PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.3 (85kW/116PS)
      • 2.3 (114kW/155PS)
      • 2.4 Turbo Diesel (80kW/109PS)
      • 2.3 Turbo (140kW/190PS)
      • 2.4 D (60kW/82PS)
      • 2.4 TD Intercooler (90kW/122PS)
    • 960 (964)
      • 2.4 TD Interc. (85kW/115PS)
      • 2.9 (150kW/204PS)
      • 2.0 (140kW/190PS)
      • 2.0 (103kW/140PS)
    • 960 Kombi (965)
      • 2.4 TD Interc. (85kW/115PS)
      • 2.9 (150kW/204PS)
      • 2.0 (140kW/190PS)
      • 2.0 (103kW/140PS)
    • 850 (854)
      • 2.0 (105kW/143PS)
      • 2.4 (103kW/140PS)
      • 2.4 (125kW/170PS)
      • 2.4 (106kW/144PS)
      • 2.0 (93kW/126PS)
      • 2.5 TDI (103kW/140PS)
      • 2.0 Turbo (155kW/210PS)
      • T5 (166kW/226PS)
      • T5-R (184kW/250PS)
      • 2.0 Turbo (132kW/179PS)
    • 850 Universālis (855)
      • 2.4 (125kW/170PS)
      • 2.0 (93kW/126PS)
      • 2.4 (103kW/140PS)
      • 2.5 TDI (103kW/140PS)
      • 2.0 (105kW/143PS)
      • 2.0 Turbo (155kW/210PS)
      • 2.4 (106kW/144PS)
      • 2.4 AWD (142kW/193PS)
      • T5 (166kW/226PS)
      • T5-R (184kW/250PS)
      • 2.0 Turbo (132kW/180PS)
    • 960 II (964)
      • 2.9 (150kW/204PS)
    • 960 II Universālis (965)
      • 2.9 (150kW/204PS)
    • 940 II (944)
      • 2.3 (96kW/131PS)
      • 2.3 (85kW/116PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.4 TD Interc. (90kW/122PS)
      • 2.0 Turbo (114kW/155PS)
    • 940 II Universālis (945)
      • 2.3 (96kW/131PS)
      • 2.3 (85kW/116PS)
      • 2.3 Turbo (121kW/165PS)
      • 2.4 TD Interc. (90kW/122PS)
      • 2.0 Turbo (114kW/155PS)
    • 260 (P262, P264)
      • 2.8 (114kW/155PS)
    • 780 (782)
      • 2.9 (115kW/156PS)
      • 2.9 (108kW/147PS)
  • PORSCHE
    • 928
      • 5.4 GTS (257kW/350PS)
    • 968
      • 3.0 (176kW/239PS)
    • 968 Kabriolets
      • 3.0 (176kW/239PS)
AUDI
481945515
BMW
1368786 61311350645 61311368786 61311379830
SAAB
733464 7334642
VOLVO
3544691 35446913 679364 6793640
VW
481945515
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