TOPRAN 109 345 Coolant Reservoir Cap

Compatible with AUDI A6 C5 (4B2, 4B4) , AUDI A6 C5 Avant (4B5, 4B6) , AUDI A6 C6 (4F2) Show more info
Ensures a secure seal for your vehicle's cooling system. Maintains proper pressure and prevents leaks.
2.29 EUR
inc. VAT 21%
In stock 48
Delivery 1 day (14.05.2026)
PN 109 345
Make TOPRAN

This coolant reservoir cap from TOPRAN is designed to fit specific vehicle models, ensuring a precise and reliable seal for your cooling system. A properly functioning cap is crucial for maintaining the correct pressure within the cooling system, which is essential for efficient engine temperature regulation. By preventing leaks and evaporation of coolant, this cap helps to protect your engine from overheating and potential damage. Its durable construction is built to withstand the demanding conditions found under the hood. Easy to install, this cap is a direct replacement for the original part, offering a straightforward solution for maintenance or repair needs.

  • Direct replacement for original part
  • Ensures a secure seal
  • Maintains cooling system pressure
  • Prevents coolant leaks
  • Durable construction
  • Helps prevent engine overheating
  • Easy installation
Material
Plastic
Additional article/Additional information
with gasket
Color
blue
Mounting type
Bolted joint
Thread type
External thread
  • AUDI
    • A6 C5 (4B2, 4B4)
      • 1.8 T (110kW/150PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.8 (92kW/125PS)
      • 2.7 T (169kW/230PS)
      • 2.7 T quattro (169kW/230PS)
      • 1.8 T quattro (132kW/180PS)
      • 2.4 (100kW/136PS)
      • 1.8 T (132kW/180PS)
      • 2.5 TDI (132kW/180PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.9 TDI (85kW/115PS)
      • 2.0 (96kW/130PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 2.4 (125kW/170PS)
      • 2.4 quattro (125kW/170PS)
      • 2.5 TDI (114kW/155PS)
      • 2.7 T quattro (184kW/250PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 3.0 (160kW/218PS)
    • A6 C5 Avant (4B5, 4B6)
      • 1.8 (92kW/125PS)
      • 2.8 quattro (142kW/193PS)
      • 1.8 T (110kW/150PS)
      • 2.4 (121kW/165PS)
      • 2.8 (142kW/193PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 2.7 T (169kW/230PS)
      • 2.7 T quattro (169kW/230PS)
      • 2.4 (100kW/136PS)
      • 1.8 T quattro (132kW/180PS)
      • 1.8 T (132kW/180PS)
      • 2.5 TDI (132kW/180PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.9 TDI (85kW/115PS)
      • 2.8 (140kW/190PS)
      • 2.0 (96kW/130PS)
      • 2.4 (125kW/170PS)
      • 2.4 quattro (125kW/170PS)
      • 2.5 TDI (114kW/155PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 3.0 (160kW/218PS)
    • A6 C6 (4F2)
      • 3.0 TFSI quattro (220kW/299PS)
      • 3.2 FSI (195kW/265PS)
      • 2.4 (130kW/177PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 2.0 TDI (103kW/140PS)
      • 3.0 TDI quattro (165kW/225PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.7 TDI (132kW/180PS)
      • 2.7 TDI (120kW/163PS)
      • 2.4 quattro (130kW/177PS)
      • 2.7 TDI quattro (132kW/180PS)
      • 2.0 TFSI (125kW/170PS)
      • 2.0 TDI (100kW/136PS)
      • 2.7 TDI quattro (120kW/163PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.8 FSI (154kW/210PS)
      • 3.0 quattro (160kW/218PS)
      • 2.8 FSI quattro (154kW/210PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 2.7 TDI quattro (140kW/190PS)
      • 2.8 FSI (140kW/190PS)
      • 2.8 FSI quattro (140kW/190PS)
      • 2.8 FSI quattro (162kW/220PS)
      • 2.8 FSI (162kW/220PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 3.0 TFSI quattro (213kW/290PS)
    • A6 C6 Avant (4F5)
      • 3.0 TFSI quattro (220kW/299PS)
      • 2.0 TDI (103kW/140PS)
      • 2.7 TDI (120kW/163PS)
      • 3.0 TDI quattro (165kW/225PS)
      • 3.2 FSI (188kW/255PS)
      • 3.2 FSI quattro (188kW/255PS)
      • 2.4 (130kW/177PS)
      • 2.4 quattro (130kW/177PS)
      • 3.0 TDI quattro (155kW/211PS)
      • 2.7 TDI (132kW/180PS)
      • 2.7 TDI quattro (132kW/180PS)
      • 2.0 TFSI (125kW/170PS)
      • 2.0 TDI (100kW/136PS)
      • 2.7 TDI quattro (120kW/163PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 2.8 FSI (154kW/210PS)
      • 3.0 quattro (160kW/218PS)
      • 2.8 FSI quattro (154kW/210PS)
      • 2.0 TDI (89kW/121PS)
      • 2.0 TDI (125kW/170PS)
      • 2.7 TDI (140kW/190PS)
      • 2.7 TDI quattro (140kW/190PS)
      • 2.8 FSI (140kW/190PS)
      • 2.8 FSI (162kW/220PS)
      • 2.8 FSI quattro (140kW/190PS)
      • 2.8 FSI quattro (162kW/220PS)
      • 3.0 TDI quattro (176kW/240PS)
      • 3.0 TFSI quattro (213kW/290PS)
      • 3.0 (160kW/218PS)
      • 2.0 TDI (120kW/163PS)
    • A4 B6 (8E2)
      • 1.8 T (110kW/150PS)
      • 2.0 (96kW/130PS)
      • 1.8 T quattro (110kW/150PS)
      • 3.0 (162kW/220PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 1.6 (75kW/102PS)
      • 2.5 TDI (114kW/155PS)
      • 1.9 TDI (74kW/101PS)
      • 2.4 (125kW/170PS)
      • 2.0 FSI (110kW/150PS)
      • 1.9 TDI quattro (96kW/130PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
      • 1.9 TDI (85kW/116PS)
      • 3.0 (160kW/218PS)
      • 3.0 quattro (160kW/218PS)
    • A4 B6 Avant (8E5)
      • 1.6 (75kW/102PS)
      • 2.0 (96kW/130PS)
      • 1.8 T (110kW/150PS)
      • 3.0 (162kW/220PS)
      • 1.9 TDI (96kW/130PS)
      • 2.4 (125kW/170PS)
      • 2.5 TDI quattro (132kW/180PS)
      • 2.5 TDI (114kW/155PS)
      • 1.8 T quattro (110kW/150PS)
      • 3.0 quattro (162kW/220PS)
      • 1.9 TDI (74kW/101PS)
      • 1.9 TDI quattro (96kW/130PS)
      • 2.0 FSI (110kW/150PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.5 TDI (120kW/163PS)
      • 2.4 (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
      • 1.9 TDI (85kW/116PS)
      • 3.0 (160kW/218PS)
      • 3.0 quattro (160kW/218PS)
    • A8 D3 (4E2, 4E8)
      • 4.2 quattro (246kW/335PS)
      • 3.7 quattro (206kW/280PS)
      • 4.0 TDI quattro (202kW/275PS)
      • 3.0 (162kW/220PS)
      • 6.0 W12 quattro (331kW/450PS)
      • 3.0 TDI quattro (171kW/233PS)
      • 3.2 FSI (191kW/260PS)
      • 3.2 FSI quattro (191kW/260PS)
      • 4.2 TDI quattro (235kW/320PS)
      • 3.0 (160kW/218PS)
      • 3.0 TDI quattro (155kW/211PS)
      • S8 quattro (331kW/450PS)
      • 4.2 TDI quattro (240kW/326PS)
      • 4.2 FSI quattro (257kW/350PS)
      • 2.8 FSI (154kW/210PS)
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