MiMi Auto Parts
CAP EXPANSION TANK 1.5 BAR, Moca

CAP EXPANSION TANK 1.5 BAR

Brand: Moca

SKU: 112306

Category: COOLING, PRESSURE CAP

R85,10 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

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Fitment: Fits selected models across Audi and Volkswagen. Confirm exact fitment before ordering.

Product Description

The Moca CAP EXPANSION TANK 1.5 BAR is a crucial component in your vehicle's cooling system, designed to maintain the correct pressure within the expansion tank. This cap helps prevent coolant loss and overheating by sealing the system, ensuring your engine operates at optimal temperatures.

This cooling pressure cap is compatible with selected Audi and Volkswagen models, including popular options like the Golf, Jetta, A3, A4, TT, and Q7. It is important to check your vehicle's model, year, engine size, and engine code to confirm compatibility before purchasing.

Common symptoms of a failing expansion tank cap include coolant leaks around the cap, frequent low coolant warnings, overheating, visible steam from the engine bay, and a collapsed or swollen expansion tank. You may also notice a sweet smell from escaping coolant or inconsistent temperature readings.

Replace your expansion tank cap if you notice any of these symptoms or during routine cooling system maintenance. A faulty cap can lead to pressure loss, overheating, and potential engine damage, so timely replacement is essential.

Shop with confidence at MiMi Auto Parts, your trusted source for cooling system components. We offer nationwide delivery across South Africa, making it easy to keep your vehicle running smoothly.

Common signs this part may need replacement

  • Coolant leaking or pooling near the expansion tank
  • Frequent low coolant level warnings
  • Engine overheating
  • Visible steam from the engine compartment
  • Collapsed or swollen expansion tank
  • Sweet smell of coolant around the engine bay
  • Inconsistent engine temperature readings
  • Difficulty maintaining proper coolant pressure

Typical replacement guidance

Replace the expansion tank cap if you observe coolant leaks, pressure loss, or signs of overheating. It is also recommended to replace the cap during routine cooling system servicing or whenever the cap's seal appears worn or damaged.

Why timely replacement matters

A faulty expansion tank cap can cause coolant loss and overheating, risking severe engine damage. Timely replacement helps maintain cooling system pressure and engine reliability.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 1.8 T (BEX) – 140 kW / 190 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 1.8 T (BFB) – 120 kW / 163 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 1.9 TDI (AVF|AWX) – 96 kW / 130 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 2.0 (ALT) – 96 kW / 130 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 2.4 (BDV) – 125 kW / 170 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 2.5 TDI quattro (AKE|BAU|BDH) – 132 kW / 180 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 3.0 (ASN) – 162 kW / 220 HP
  • AUDI A4 / S4 B6 (8E2) 2001 – 2005 3.0 quattro (ASN) – 162 kW / 220 HP
  • AUDI A4 / S4 B6 Avant (8E5) 2002 – 2005 1.8 T (BEX) – 140 kW / 190 HP
  • AUDI A4 / S4 B6 Avant (8E5) 2002 – 2005 1.8 T (BFB) – 120 kW / 163 HP
  • AUDI A4 / S4 B6 Avant (8E5) 2002 – 2005 1.9 TDI (AVF|AWX) – 96 kW / 130 HP
  • AUDI A4 / S4 B6 Avant (8E5) 2002 – 2005 2.5 TDI quattro (AKE|BAU|BDH) – 132 kW / 180 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 1.8 (ADR|APT|ARG|AVV) – 92 kW / 125 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 1.8 (AFY) – 85 kW / 115 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 1.8 T (AEB|ANB|APU|ARK|AWT) – 110 kW / 150 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.4 (AGA|ALF|AML|APS|ARJ) – 121 kW / 165 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.4 (AJG|AMM|APZ) – 120 kW / 163 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.5 TDI (AFB|AKN) – 110 kW / 150 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.6 (ABC) – 110 kW / 150 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.8 (ACK|AHA|ALG|AMX|APR|AQD|ATQ) – 142 kW / 193 HP
  • AUDI A4 B5 (8D2) 1995 – 2001 2.8 quattro (ACK|AHA|ALG|AMX|APR|AQD|ATQ) – 142 kW / 193 HP
  • AUDI A4 B5 Avant (8D5) 1997 – 2001 1.8 (ADR|APT|ARG|AVV) – 92 kW / 125 HP
  • AUDI A4 B5 Avant (8D5) 1997 – 2001 1.8 T (AEB|ANB|APU|ARK|AWT) – 110 kW / 150 HP
  • AUDI A4 B5 Avant (8D5) 1997 – 2001 2.4 (AGA|ALF|AML|APS|ARJ) – 121 kW / 165 HP
  • AUDI A4 B5 Avant (8D5) 1997 – 2001 2.6 (ABC) – 110 kW / 150 HP
  • AUDI A4 B5 Avant (8D5) 1997 – 2001 2.8 quattro (ACK|AHA|ALG|AMX|APR|AQD|ATQ) – 142 kW / 193 HP
  • AUDI A6 / S6 C4 (4A2) 1994 – 1998 2.6 (ABC) – 110 kW / 150 HP
  • AUDI A6 / S6 C4 (4A2) 1994 – 1998 2.8 (AAH|AFC) – 128 kW / 174 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 1.8 T (AEB|ANB|APU|ARK|AWT) – 110 kW / 150 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 1.9 TDI (AVF|AWX) – 96 kW / 130 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 2.4 (AGA|ALF|AML|APS|ARJ) – 121 kW / 165 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 2.4 (BDV) – 125 kW / 170 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 2.5 TDI (BCZ|BDG|BFC) – 120 kW / 163 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 2.7 T quattro (ARE|BES) – 184 kW / 250 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 2.8 quattro (ACK|ALG|AMX|APR|AQD) – 142 kW / 193 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 3.0 (ASN) – 162 kW / 220 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 3.0 quattro (ASN) – 162 kW / 220 HP
  • AUDI A6 / S6 C5 (4B2, 4B4) 1997 – 2004 4.2 quattro (ARS|ART|ASG|AWN) – 220 kW / 299 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.4 (AGA|ALF|AML|APS|ARJ) – 121 kW / 165 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.4 (BDV) – 125 kW / 170 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.5 TDI (BCZ|BDG|BFC) – 120 kW / 163 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.5 TDI Allroad quattro (AKE|BAU|BDH) – 132 kW / 180 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.7 T Allroad quattro (ARE|BES) – 184 kW / 250 HP
  • AUDI A6 / S6 C5 Avant (4B5, 4B6) 1998 – 2006 2.8 quattro (ACK|ALG|AMX|APR|AQD|ATQ) – 142 kW / 193 HP
  • AUDI A6 C4 Avant (4A5) 1994 – 1998 2.6 (ABC) – 110 kW / 150 HP
  • AUDI A6 C4 Avant (4A5) 1994 – 1998 2.6 (ACZ) – 102 kW / 139 HP
  • AUDI Q7 (4LB) 2006 – 2015 3.0 TDI quattro (BUG) – 171 kW / 233 HP
  • AUDI Q7 (4LB) 2006 – 2015 3.0 TDI quattro (CASA|CCMA|CJGA|CNRB) – 176 kW / 240 HP
  • AUDI Q7 (4LB) 2006 – 2015 3.0 TDI quattro (CJGD|CLZB|CRCA) – 180 kW / 245 HP
  • AUDI Q7 (4LB) 2006 – 2015 3.0 TFSI quattro (CJTB|CJWB|CNAA|CTWA) – 245 kW / 333 HP

Fitment support

Not sure if this part fits your vehicle? Contact MiMi Auto Parts with your vehicle make, model, year, and engine code before ordering and we will help confirm fitment.

Installation note

Cooling system work involves draining and refilling coolant and may require specialised tools. Professional installation is recommended to ensure correct coolant mixture, bleeding of air from the system, and leak-free connections.

Frequently Asked Questions

What are the signs of a failing water pump?

Common signs may include coolant leaks near the front of the engine, engine overheating, a whining or grinding noise from the water pump area, or coolant loss without visible external leaks. Diagnosis should be confirmed before replacement.

Can I drive with a coolant leak?

Driving with a coolant leak is not recommended. Loss of coolant can lead to engine overheating and potentially serious engine damage. The vehicle should be inspected and the leak repaired before further driving.

Does this part fit my vehicle?

Please check the vehicle compatibility section on this page and confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.

Is the price VAT-inclusive?

Yes, product prices on MiMi Auto Parts are shown inclusive of VAT where applicable.

Do you deliver across South Africa?

Yes, MiMi Auto Parts delivers nationwide in South Africa. Delivery cost and estimated timing are calculated during checkout based on your location.

Is professional installation recommended?

Professional installation is recommended for safety-critical and technical parts such as airbag, clock spring, brakes, suspension, steering, clutch, cooling, engine, and electrical components. For guidance specific to this part, see the installation note on this page.

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