MiMi Auto Parts
EXPANSION TANK, Moca

EXPANSION TANK

Brand: Moca

SKU: 121844

Category: COOLING, WATER BOTTLE

R579,60 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

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

Product Description

Keep your Audi’s cooling system functioning reliably with this Moca Expansion Tank, designed for select Audi models. The expansion tank, also known as the cooling water bottle, stores excess coolant and helps maintain the correct pressure within the cooling system. Over time, expansion tanks can become brittle, develop cracks, or suffer from leaks, which may lead to overheating or coolant loss.

This expansion tank is suitable for specific Audi models, including the A4 B8, A5 1.8 and 2.0 TFSI and TDI, and Q5 2.0 TFSI and TDI variants. Always confirm compatibility with your vehicle’s model, year, engine size, and engine code prior to purchase to ensure a proper fit.

Common symptoms of a failing expansion tank include visible coolant leaks, frequent low coolant warnings, overheating, or the presence of cracks or discolouration on the reservoir. If you notice steam from the engine bay or coolant pooling under your vehicle, the expansion tank could be the culprit.

When replacing the expansion tank, it is important to also inspect the cap and hoses for any signs of wear or damage. Replacing a faulty tank promptly helps prevent engine overheating and protects other cooling system components from damage.

Order your Moca Expansion Tank from MiMi Auto Parts for peace of mind. We offer nationwide delivery throughout South Africa, making it easy to get the right part delivered straight to your door.

Common signs this part may need replacement

  • Coolant leaks near the reservoir
  • Frequent low coolant warnings
  • Visible cracks or discolouration on the tank
  • Overheating engine
  • Steam from the engine bay
  • Coolant smell around the bonnet area
  • Coolant pooling under the vehicle
  • Unstable coolant level readings
  • Hissing noises from the tank area

Typical replacement guidance

Replace the expansion tank if you notice cracks, leaks, or any signs of deterioration. Timely replacement helps maintain correct cooling system pressure and prevents engine overheating.

Why timely replacement matters

A damaged expansion tank can lead to coolant loss and engine overheating, risking severe engine damage. Timely replacement ensures your cooling system operates efficiently.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 1.8 TFSI (CABA|CDHA) – 88 kW / 120 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 1.8 TFSI (CABB|CDHB) – 118 kW / 160 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TDI (CAGA|CJCA|CMEA|CMFA) – 105 kW / 143 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TDI (CAGB|CJCB|CSUB) – 100 kW / 136 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TDI (CAHA) – 125 kW / 170 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TDI (CGLC|CMGB) – 130 kW / 177 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TFSI (CAEA|CDNB|CFKA) – 132 kW / 180 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TFSI (CAEB|CDNC) – 155 kW / 211 HP
  • AUDI A4 / S4 B8 (8K2) 2008 – 2017 2.0 TFSI quattro (CDNC|CPMA) – 155 kW / 211 HP
  • AUDI A4 / S4 B8 Avant (8K5) 2008 – 2017 1.8 TFSI (CABB|CDHB) – 118 kW / 160 HP
  • AUDI A4 / S4 B8 Avant (8K5) 2008 – 2017 2.0 TDI (CAGA|CJCA|CMEA|CMFA) – 105 kW / 143 HP
  • AUDI A4 / S4 B8 Avant (8K5) 2008 – 2017 2.0 TDI (CGLC) – 130 kW / 177 HP
  • AUDI A4 / S4 B8 Avant (8K5) 2008 – 2017 2.0 TFSI (CAEB|CDNC) – 155 kW / 211 HP
  • AUDI A5 / S5 (8T3) 2008 – 2017 1.8 TFSI (CABD|CJEB) – 125 kW / 170 HP
  • AUDI A5 / S5 (8T3) 2008 – 2017 2.0 TDI (CGLC) – 130 kW / 177 HP
  • AUDI A5 / S5 (8T3) 2008 – 2017 2.0 TFSI (CDNC) – 155 kW / 211 HP
  • AUDI A5 / S5 (8T3) 2008 – 2017 2.0 TFSI quattro (CAEB|CDNC|CPMA) – 155 kW / 211 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 1.8 TFSI (CJEB) – 125 kW / 170 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 1.8 TFSI (CJEE) – 130 kW / 177 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TDI (CGLC) – 130 kW / 177 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI (CAEB|CDNC) – 155 kW / 211 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI (CNCD) – 165 kW / 224 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI (CNCE) – 169 kW / 230 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI quattro (CAEB|CDNC|CPMA) – 155 kW / 211 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI quattro (CNCD) – 165 kW / 224 HP
  • AUDI A5 / S5 Convertible (8F7) 2009 – 2017 2.0 TFSI quattro (CNCE) – 169 kW / 230 HP
  • AUDI A5 / S5 Sportback (8TA) 2010 – 2017 2.0 TDI (CGLC) – 130 kW / 177 HP
  • AUDI A5 / S5 Sportback (8TA) 2010 – 2017 2.0 TFSI (CDNC) – 155 kW / 211 HP
  • AUDI A5 / S5 Sportback (8TA) 2010 – 2017 2.0 TFSI quattro (CDNC) – 155 kW / 211 HP
  • AUDI Q5 (8RB) 2009 – 2026 2.0 TDI quattro (CAHA|CGLB|CMGA) – 125 kW / 170 HP
  • AUDI Q5 (8RB) 2009 – 2026 2.0 TDI quattro (CGLC|CMGB) – 130 kW / 177 HP
  • AUDI Q5 (8RB) 2009 – 2026 2.0 TFSI quattro (CAEB|CDNC) – 155 kW / 211 HP
  • AUDI Q5 (8RB) 2009 – 2026 2.0 TFSI quattro (CDNB|CNCB) – 132 kW / 180 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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