MiMi Auto Parts
EXPANSION TANK NO LOWER PIPE, Moca

EXPANSION TANK NO LOWER PIPE

Brand: Moca

SKU: 403660

Category: COOLING, WATER BOTTLE

R917,70 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

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

Product Description

This Moca expansion tank, listed as 'Expansion Tank No Lower Pipe', is a crucial component in your BMW's cooling system. It serves as the reservoir for excess coolant, allowing the system to manage changes in coolant volume as the engine heats and cools. Designed specifically for BMW models, this cooling water bottle helps maintain proper coolant levels and pressure, protecting your engine from overheating.

Fitment for this expansion tank is specific to BMW vehicles. Before purchasing, please confirm your BMW’s model, year, engine size, and engine code to ensure compatibility. This tank is intended for use where the lower pipe is not included, so check your existing setup to match this requirement.

Common symptoms of a failing or damaged expansion tank include coolant leaks, fluctuating coolant levels, warning lights on the dashboard, overheating, visible cracks or swelling in the tank, and steam or odours from under the bonnet. If you notice any of these issues, it may be time to inspect or replace your expansion tank.

Replacement is recommended if you see visible damage, persistent coolant loss, or if your system cannot maintain pressure. Always check for compatibility and ensure all connections match your vehicle’s requirements before installation.

Order your BMW cooling water bottle from MiMi Auto Parts for reliable nationwide delivery across South Africa. Our knowledgeable team is here to help you find the right part to keep your BMW running smoothly.

Common signs this part may need replacement

  • Coolant leaks around the tank area
  • Frequent low coolant warnings
  • Engine overheating
  • Visible cracks or swelling on the tank
  • Coolant odours or steam from the engine bay
  • Unstable coolant levels
  • Dashboard coolant warning light illuminated
  • Air bubbles in the cooling system
  • Loss of cooling system pressure

Typical replacement guidance

Replace the expansion tank if you notice cracks, leaks, or loss of pressure in your cooling system. Regular inspection is advised, especially if your BMW has high mileage or a history of cooling issues.

Why timely replacement matters

A faulty expansion tank can lead to engine overheating and serious damage if not addressed promptly. Timely replacement helps maintain proper cooling system function and prolongs engine life.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 3 (E46) 1997 – 2005 318 i (M43 B19 (194E1)) – 87 kW / 118 HP
  • BMW 3 (E46) 1997 – 2005 320 d (M47 D20 (204D4)) – 110 kW / 150 HP
  • BMW 3 (E46) 1997 – 2005 330 d (M57 D30 (306D1)) – 135 kW / 184 HP
  • BMW 3 (E46) 1997 – 2005 330 d (M57 D30 (306D2)) – 150 kW / 204 HP
  • BMW 3 Touring (E46) 1999 – 2005 318 i (M43 B19 (194E1)) – 87 kW / 118 HP
  • BMW 3 Touring (E46) 1999 – 2005 320 d (M47 D20 (204D4)) – 110 kW / 150 HP
  • BMW 3 Touring (E46) 1999 – 2005 330 d (M57 D30 (306D1)) – 135 kW / 184 HP
  • BMW 3 Touring (E46) 1999 – 2005 330 d (M57 D30 (306D2)) – 150 kW / 204 HP
  • BMW X5 (E53) 2000 – 2006 3.0 d (M57 D30 (306D1)) – 135 kW / 184 HP
  • BMW X5 (E53) 2000 – 2006 3.0 d (M57 D30 (306D2)) – 160 kW / 218 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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