FEBI BILSTEIN 21751 Coolant Level Sensor

Compatible with MERCEDES-BENZ 190 (W201) , MERCEDES-BENZ 123 Sedans (W123) , MERCEDES-BENZ 123 T-Model (S123) Show more info
Ensures accurate monitoring of your vehicle's coolant level. Maintains optimal engine temperature and prevents overheating.
7.87 EUR
inc. VAT 21%
In stock 22
Delivery 1 day (24.03.2026)
PN 21751
Make FEBI BILSTEIN
EAN 4027816217510

This coolant level sensor from FEBI BILSTEIN is designed to provide precise readings of the coolant in your vehicle's system. Proper coolant level is crucial for preventing engine damage caused by overheating. When the coolant level drops below a safe threshold, this sensor will trigger a warning light on your dashboard, alerting you to add coolant. This proactive notification helps you avoid potential engine issues and costly repairs. FEBI BILSTEIN is known for its commitment to quality and reliability. This sensor is manufactured to meet stringent standards, ensuring long-lasting performance and accurate operation. It is a direct replacement for your original equipment sensor, guaranteeing a proper fit and function. Regularly checking your coolant level is essential for maintaining your engine's health. This sensor simplifies that process by providing a constant and reliable indication of your coolant status.

  • Accurate coolant level monitoring
  • Helps prevent engine overheating
  • Triggers dashboard warning light
  • Ensures optimal engine temperature
  • High-quality construction by FEBI BILSTEIN
  • Direct replacement for original sensor
  • Promotes engine longevity
Length [mm]
90°
Width [mm]
+35
Thickness [mm]
2+2
Voltage [V]
1/2"
Number of connections
2
Additional article/Additional info 2
with sealing ring
  • MERCEDES-BENZ
    • 190 (W201)
      • E 1.8 (201.018) (80kW/109PS)
      • 2.0 (201.022) (66kW/90PS)
      • E 2.0 (201.024) (83kW/113PS)
      • 2.0 (201.023) (75kW/102PS)
      • 2.0 (201.023) (77kW/105PS)
      • E 2.0 (87kW/118PS)
      • E 2.0 (201.024) (90kW/122PS)
      • E 2.3-16 (125kW/170PS)
      • E 2.3-16 (130kW/177PS)
      • E 2.3-16 (201.034) (136kW/185PS)
      • E 2.3 (97kW/132PS)
      • E 2.3 (201.028) (100kW/136PS)
      • E 2.5-16 Evolution (201.036) (143kW/194PS)
      • E 2.5-16 (201.035) (150kW/204PS)
      • E 2.6 (122kW/166PS)
      • D 2.0 (201.122) (53kW/72PS)
      • D 2.0 (201.122) (55kW/75PS)
      • D 2.5 (201.126) (66kW/90PS)
      • D 2.5 (201.126) (69kW/94PS)
      • Turbo-D 2.5 (201.128) (93kW/126PS)
      • E 2.5-16 Evolution II (173kW/235PS)
      • E 2.6 (201.029) (118kW/160PS)
    • 123 Sedans (W123)
      • 200 (62kW/84PS)
      • 200 (123.020) (69kW/94PS)
      • 200 (123.220) (80kW/109PS)
      • 230 E (123.223) (100kW/136PS)
      • 230 (123.023) (80kW/109PS)
      • 250 (123.026) (103kW/140PS)
      • 280 (123.030) (115kW/156PS)
      • 280 E (123.033) (136kW/185PS)
      • 200 D (123.120) (40kW/55PS)
      • 200 D (44kW/60PS)
      • 220 D (49kW/67PS)
      • 240 D (123.123) (53kW/72PS)
      • 240 D (123.123) (48kW/65PS)
      • 300 D (123.130) (59kW/80PS)
      • 300 D (123.130) (65kW/88PS)
      • 300 Turbo-D (123.133) (92kW/125PS)
      • 250 (123.026) (95kW/129PS)
    • 123 T-Model (S123)
      • 200 T (80kW/109PS)
      • 230 TE (123.283) (100kW/136PS)
      • 230 T (123.083) (80kW/109PS)
      • 250 T (123.086) (95kW/129PS)
      • 250 T (123.086) (103kW/140PS)
      • 280 TE (123.093) (136kW/185PS)
      • 240 T D (123.183) (53kW/72PS)
      • 240 T D (48kW/65PS)
      • 300 T D (123.190) (59kW/80PS)
      • 300 T D (123.190) (65kW/88PS)
      • 300 T Turbo-D (123.193) (92kW/125PS)
    • 124 Sedans (W124)
      • 200 (124.020) (80kW/109PS)
      • 200 E (124.021) (87kW/118PS)
      • 200 E (124.021) (90kW/122PS)
      • 230 E (124.023) (97kW/132PS)
      • 230 E (124.023) (100kW/136PS)
      • 260 E 4-matic (124.226) (118kW/160PS)
      • 260 E (124.026) (118kW/160PS)
      • 260 E (124.026) (122kW/166PS)
      • 300 E (124.030) (132kW/180PS)
      • 300 E 4-matic (124.230) (132kW/180PS)
      • 300 E 4-matic (138kW/188PS)
      • 300 E (138kW/188PS)
      • 200 D (124.120) (53kW/72PS)
      • 200 D (124.120) (55kW/75PS)
      • 250 D (124.125) (66kW/90PS)
      • 250 D (124.125) (69kW/94PS)
      • 250 Turbo-D (124.128) (93kW/126PS)
      • 300 D (124.130) (80kW/109PS)
      • 300 D 4-matic (124.330) (80kW/109PS)
      • 300 D 4-matic (124.330) (83kW/113PS)
      • 300 D (124.130) (83kW/113PS)
      • 300 Turbo-D 4-matic (124.333) (108kW/147PS)
      • 300 Turbo-D (124.133) (108kW/147PS)
      • 200 (77kW/105PS)
      • 300 E-24 (124.031) (162kW/220PS)
      • 500 E (124.036) (240kW/326PS)
      • 200 E (124.019) (100kW/136PS)
      • 220 E (124.022) (110kW/150PS)
      • 280 E (124.028) (145kW/197PS)
      • 400 E 4.2 (124.034) (205kW/279PS)
      • 320 E (124.032) (162kW/220PS)
      • 230 E Cat (124.023) (97kW/132PS)
    • E-CLASS (W124)
      • E 250 D (124.126, 124.129) (83kW/113PS)
      • E 300 D (124.131) (100kW/136PS)
      • E 200 (124.019) (100kW/136PS)
      • E 220 (124.022) (110kW/150PS)
      • E 280 (124.029) (142kW/193PS)
      • E 280 (124.028) (145kW/197PS)
      • E 320 (124.032) (162kW/220PS)
      • E 420 (124.034) (205kW/279PS)
      • E 500 (124.036) (235kW/320PS)
      • E 200 D (124.120) (55kW/75PS)
      • E 250 Turbo-D (124.128) (93kW/126PS)
      • E 300 Turbo-D 4-matic (124.333) (108kW/147PS)
      • E 300 Turbo-D (124.133) (108kW/147PS)
      • E 300 4-matic (124.230) (132kW/180PS)
      • E 60 AMG (124.036) (280kW/381PS)
    • 124 T-Model (S124)
      • 200 T (124.080) (77kW/105PS)
      • 200 T (124.080) (80kW/109PS)
      • 200 TE (124.081) (87kW/118PS)
      • 230 TE Cat (124.083) (97kW/132PS)
      • 230 TE (124.083) (100kW/136PS)
      • 300 TE 4-matic (124.290) (132kW/180PS)
      • 300 TE (124.090) (132kW/180PS)
      • 300 TE (124.090) (138kW/188PS)
      • 200 T D (124.180) (55kW/75PS)
      • 250 T D (124.185) (66kW/90PS)
      • 250 T D (124.185) (69kW/94PS)
      • 300 T D (124.190) (80kW/109PS)
      • 300 T D (124.190) (83kW/113PS)
      • 300 TE-24 (124.091) (162kW/220PS)
      • 260 TE FGST. (118kW/160PS)
      • 220 TE (124.082) (110kW/150PS)
      • 300 T Turbo-D (124.193) (108kW/147PS)
      • 320 TE (124.092) (162kW/220PS)
      • 280 TE (124.088) (145kW/197PS)
      • 200 TE (124.079) (100kW/136PS)
      • 250 TD Turbo (124.188) (93kW/126PS)
    • E-CLASS T-Model (S124)
      • E 300 TD (124.191) (100kW/136PS)
      • E 200 T (124.079) (100kW/136PS)
      • E 220 T (124.082) (110kW/150PS)
      • E 320 T (124.092) (162kW/220PS)
      • E 250 TD (124.186) (83kW/113PS)
      • E 280 T (124.088) (142kW/193PS)
      • E 36 T AMG (124.092) (200kW/272PS)
      • E 300 T Turbo-D (124.193) (108kW/147PS)
      • E 300 T 4-matic (124.290) (132kW/180PS)
      • E 300 T Turbo-D 4-matic (124.393) (108kW/147PS)
      • E 250 Turbo D (93kW/126PS)
    • S-CLASS (W116)
      • 280 S (116.020) (115kW/156PS)
      • 280 SE, SEL (116.024, 116.025) (136kW/185PS)
      • 350 SE, SEL (116.028, 116.029) (143kW/194PS)
      • 350 SE, SEL (116.028, 116.029) (147kW/200PS)
      • 350 SE, SEL (116.028, 116.029) (151kW/205PS)
      • 450 SE, SEL (116.032) (165kW/224PS)
      • 450 SEL 6.9 (116.036) (210kW/286PS)
    • S-CLASS (W126)
      • 260 SE (126.020) (118kW/160PS)
      • 280 S (126.021) (115kW/156PS)
      • 280 SE, SEL (126.022, 126.023) (136kW/185PS)
      • 300 SE, SEL (126.024, 126.025) (132kW/180PS)
      • 300 SE, SEL (126.024, 126.025) (138kW/188PS)
      • 380 SE, SEL (126.032, 126.033) (160kW/218PS)
      • 380 SE, SEL (126.032) (150kW/204PS)
      • 420 SE, SEL (126.034, 126.035) (150kW/204PS)
      • 420 SE, SEL (126.034) (160kW/218PS)
      • 420 SE, SEL (165kW/224PS)
      • 420 SE, SEL (170kW/231PS)
      • 500 SE, SEL (126.036) (164kW/223PS)
      • 500 SE, SEL (126.036) (170kW/231PS)
      • 500 SE, SEL (126.036) (177kW/241PS)
      • 500 SE, SEL (126.036) (180kW/245PS)
      • 500 SE, SEL (185kW/252PS)
      • 500 SE, SEL (195kW/265PS)
      • 560 SE, SEL (126.038, 126.039) (178kW/242PS)
      • 560 SE, SEL (126.038) (200kW/272PS)
      • 560 SE, SEL (205kW/279PS)
      • 560 SE, SEL (220kW/300PS)
    • SL (R107)
      • 280 SL (107.042) (130kW/177PS)
      • 280 SL (107.042) (136kW/185PS)
      • 300 SL (107.041) (132kW/180PS)
      • 300 SL (107.041) (138kW/188PS)
      • 350 SL (107.043) (143kW/195PS)
      • 380 SL (107.045) (160kW/218PS)
      • 380 SL (107.045) (150kW/204PS)
      • 420 SL (107.047) (150kW/204PS)
      • 420 SL (107.047) (160kW/218PS)
      • 450 SL (107.044) (160kW/218PS)
      • 450 SL (107.044) (165kW/224PS)
      • 500 SL (107.046) (164kW/223PS)
      • 500 SL (107.046) (170kW/231PS)
      • 500 SL (107.046) (177kW/241PS)
      • 500 SL (107.046) (180kW/245PS)
    • SL Coupe (C107)
      • 450 SLC (107.024) (160kW/218PS)
      • 280 SLC (107.022) (130kW/177PS)
      • 280 SLC (107.022) (136kW/185PS)
      • 350 SLC (107.023) (147kW/200PS)
      • 380 SLC (107.025) (160kW/218PS)
      • 450 SLC (107.024) (165kW/225PS)
      • 450 SLC 5.0 (107.026) (177kW/241PS)
    • 123 Coupe (C123)
      • 230 CE (123.243) (100kW/136PS)
      • 230 C (123.043) (80kW/109PS)
      • 280 C (123.050) (115kW/156PS)
      • 280 CE (130kW/177PS)
      • 280 CE (136kW/185PS)
    • 124 Coupe (C124)
      • 230 CE (124.043) (100kW/136PS)
      • 300 CE (138kW/188PS)
      • 300 CE-24 (124.051) (162kW/220PS)
      • 230 CE Cat (124.043) (97kW/132PS)
      • 300 CE (124.050) (132kW/180PS)
      • 320 CE (124.052) (162kW/220PS)
      • 220 CE (124.042) (110kW/150PS)
      • 200 CE (124.040) (100kW/136PS)
      • 200 CE (124.041) (87kW/118PS)
    • E-CLASS Kabriolets (A124)
      • E 200 (124.060) (100kW/136PS)
      • E 220 (124.062) (110kW/150PS)
      • E 320 (124.066) (162kW/220PS)
      • E 36 AMG (124.066) (200kW/272PS)
    • E-CLASS Coupe (C124)
      • E 200 (124.040) (100kW/136PS)
      • E 220 (124.042) (110kW/150PS)
      • E 320 (124.052) (162kW/220PS)
      • E 36 AMG (124.052) (200kW/272PS)
    • 124 Kabriolets (A124)
      • 300 CE-24 (124.061) (162kW/220PS)
    • S-CLASS Coupe (C126)
      • 380 SEC (126.043) (150kW/204PS)
      • 420 SEC (126.046) (150kW/204PS)
      • 420 SEC (126.046) (160kW/218PS)
      • 420 SEC (126.046) (165kW/224PS)
      • 500 SEC (126.044) (164kW/223PS)
      • 500 SEC (126.044) (170kW/231PS)
      • 500 SEC (126.044) (180kW/245PS)
      • 500 SEC (126.044) (185kW/252PS)
      • 560 SEC (126.045) (178kW/242PS)
      • 560 SEC (126.045) (200kW/272PS)
      • 560 SEC (126.045) (205kW/279PS)
      • 560 SEC (126.045) (220kW/300PS)
      • 500 SEC (126.044) (195kW/265PS)
    • SL (R129)
      • 280 (129.058) (142kW/193PS)
      • 300 SL (129.060) (140kW/190PS)
      • 300 SL-24 (129.061) (170kW/231PS)
      • 320 (129.063) (170kW/231PS)
      • 500 (129.067) (235kW/320PS)
      • 500 SL (129.066) (240kW/326PS)
      • 600 (129.076) (290kW/394PS)
      • 280 (129.059) (150kW/204PS)
      • 320 (129.064) (165kW/224PS)
      • 500 (129.068) (225kW/306PS)
    • S-CLASS (W140)
      • S 350 Turbo-D (140.134) (110kW/150PS)
      • S 280 (140.028) (142kW/193PS)
      • 300 SE 2.8 (140.028) (145kW/197PS)
      • 300 SE, SEL/S320 (140.032, 140.033) (170kW/231PS)
      • S 420 (140.042, 140.043) (205kW/279PS)
      • S 500 (140.050, 140.051) (235kW/320PS)
      • 500 SE, SEL (140.050, 140.051) (240kW/326PS)
      • S 600 (140.056, 140.057) (290kW/394PS)
      • 600 SE, SEL (140.056, 140.057) (300kW/408PS)
      • S 300 Turbo-D (140.135) (130kW/177PS)
    • S-CLASS Coupe (C140)
      • 500 SEC / CL 500 (140.070) (235kW/320PS)
      • SEC/CL 600 (140.076) (290kW/394PS)
      • SEC/CL 420 (140.063) (205kW/279PS)
    • C-CLASS (W202)
      • C 200 D (202.120) (55kW/75PS)
      • C 220 D (202.121) (70kW/95PS)
      • C 250 D (202.125) (83kW/113PS)
      • C 180 (202.018) (90kW/122PS)
      • C 220 (202.022) (110kW/150PS)
      • C 280 (202.028) (142kW/193PS)
      • C 200 (202.020) (100kW/136PS)
      • C 36 AMG (202.028) (206kW/280PS)
      • C 230 Kompressor (202.024) (142kW/193PS)
      • C 200 Kompressor (202.025) (132kW/180PS)
      • C 250 Turbo-D (202.128) (110kW/150PS)
      • C 230 (202.023) (110kW/150PS)
      • C 200 D (202.122) (65kW/88PS)
      • C 200 Kompressor (202.025) (141kW/192PS)
      • C 240 (202.026) (125kW/170PS)
      • C 280 (202.029) (145kW/197PS)
      • C 43 AMG (202.033) (225kW/306PS)
      • C 220 CDI (202.133) (92kW/125PS)
      • C 200 CDI (202.134) (75kW/102PS)
      • C 220 D (202.021) (55kW/75PS)
    • E-CLASS (W210)
      • E 220 D (210.004) (70kW/95PS)
      • E 250 D (210.010) (83kW/113PS)
      • E 200 (210.035) (100kW/136PS)
      • E 300 D (210.020) (100kW/136PS)
      • E 230 (210.037) (110kW/150PS)
      • E 290 Turbo-D (210.017) (95kW/129PS)
      • E 280 (210.053) (142kW/193PS)
      • E 420 (210.072) (205kW/279PS)
      • E 50 AMG (210.072) (255kW/347PS)
      • E 280 (210.063) (150kW/204PS)
      • E 280 4-matic (210.081) (150kW/204PS)
      • E 320 (210.065) (165kW/224PS)
      • E 300 Turbo-D (210.025) (130kW/177PS)
      • E 320 4-matic (210.082) (165kW/224PS)
      • E 250 Turbo-D (210.015) (110kW/150PS)
      • E 200 D (210.003) (65kW/88PS)
      • E 240 (210.061) (125kW/170PS)
      • E 430 (210.070) (205kW/279PS)
      • E 200 Kompressor (210.045) (137kW/186PS)
      • E 55 AMG (210.074) (260kW/354PS)
      • E 220 CDI (210.006) (92kW/125PS)
      • E 200 CDI (210.007) (75kW/102PS)
      • E 220 D (55kW/75PS)
      • E 200 CDI (210.007) (85kW/116PS)
      • E 220 CDI (210.006) (105kW/143PS)
      • E 270 CDI (210.016) (125kW/170PS)
      • E 320 CDI (210.026) (145kW/197PS)
      • E 430 4-matic (210.083) (205kW/279PS)
      • E 200 Kompressor (210.048) (120kW/163PS)
      • E 240 (210.062) (125kW/170PS)
    • C-CLASS T-Model (S202)
      • C 180 T (202.078) (90kW/122PS)
      • C 200 T (202.080) (100kW/136PS)
      • C 220 T D (202.182) (70kW/95PS)
      • C 250 T Turbo-D (202.188) (110kW/150PS)
      • C 230 T (202.083) (110kW/150PS)
      • C 200 T D (202.180) (65kW/88PS)
      • C 230 T Kompressor (202.085) (142kW/193PS)
      • C 240 T (202.086) (125kW/170PS)
      • C 280 T (202.089) (145kW/197PS)
      • C 220 T CDI (202.193) (92kW/125PS)
      • C 200 T Kompressor (202.082) (141kW/192PS)
      • C 200 T CDI (202.194) (75kW/102PS)
      • C 220 T D (202.182) (55kW/75PS)
      • C 43 AMG (202.093) (225kW/306PS)
    • E-CLASS T-Model (S210)
      • E 200 T (210.235) (100kW/136PS)
      • E 230 T (210.237) (110kW/150PS)
      • E 420 T (210.272) (205kW/279PS)
      • E 290 T Turbo-D (210.217) (95kW/129PS)
      • E 250 T D (210.210) (83kW/113PS)
      • E 280 T 4-matic (210.281) (150kW/204PS)
      • E 320 T (210.265) (165kW/224PS)
      • E 300 T Turbo-D (210.225) (130kW/177PS)
      • E 320 T 4-matic (210.282) (165kW/224PS)
      • E 250 T Turbo-D (210.215) (110kW/150PS)
      • E 280 T (210.263) (150kW/204PS)
      • E 240 T (210.261) (125kW/170PS)
      • E 430 T (210.270) (205kW/279PS)
      • E 200 T Kompressor (210.245) (137kW/186PS)
      • E 55 T AMG (210.274) (260kW/354PS)
      • E 220 T CDI (210.206) (92kW/125PS)
      • E 320 T CDI (210.226) (145kW/197PS)
      • E 270 T CDI (210.216) (125kW/170PS)
      • E 220 T CDI (210.206) (105kW/143PS)
      • E 430 T 4-matic (210.283) (205kW/279PS)
      • E 200 T Kompressor (210.248) (120kW/163PS)
      • E 240 T (210.262) (125kW/170PS)
    • SLK (R170)
      • 200 (170.435) (100kW/136PS)
      • 230 Kompressor (170.447) (142kW/193PS)
      • 200 Kompressor (170.445) (141kW/192PS)
      • 200 Kompressor (170.444) (120kW/163PS)
      • 230 Kompressor (170.449) (145kW/197PS)
      • 320 (170.465) (160kW/218PS)
      • 32 AMG Kompressor (170.466) (260kW/354PS)
    • 170 Sedans (W136, W191)
      • 170 D (136.110) (28kW/38PS)
      • 170 V (136.010) (28kW/38PS)
      • 170 S (136.040, 136.049) (38kW/52PS)
      • 170 S-D (136.181, 136.182) (29kW/40PS)
    • CLK (C208)
      • CLK 200 (208.335) (100kW/136PS)
      • CLK 230 Kompressor (208.347) (142kW/193PS)
      • CLK 320 (208.365) (160kW/218PS)
      • CLK 200 Kompressor (208.345) (141kW/192PS)
      • CLK 430 (208.370) (205kW/279PS)
      • CLK 55 AMG (208.374) (255kW/347PS)
      • CLK 200 Kompressor (208.344) (120kW/163PS)
      • CLK 230 Kompressor (208.348) (145kW/197PS)
    • CLK Kabriolets (A208)
      • CLK 200 Kompressor (208.445) (141kW/192PS)
      • CLK 200 (208.435) (100kW/136PS)
      • CLK 230 Kompressor (208.447) (142kW/193PS)
      • CLK 320 (208.465) (160kW/218PS)
      • CLK 430 (208.470) (205kW/279PS)
      • CLK 200 Kompressor (208.444) (120kW/163PS)
      • CLK 230 Kompressor (208.448) (145kW/197PS)
    • E-CLASS Platforma/Šasija (VF210)
      • E 280 (210.663) (150kW/204PS)
0 Updated