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2 Series,3 Series,4 Series,5 Series,X3,X4,X5
Replacement Part (New)

Coolant Water Pump (2.0L Turbo B46 & B48) – BMW 2, 3, 4, 5 series & X3, X4, X5 (19-26)

SKU: 11518482250
R 2,500.00

The BMW Mechanical Engine Coolant Water Pump is the primary belt-driven mechanical coolant circulation pump engineered specifically for modular B46 and B48 2.0-liter inline 4-cylinder turbocharged engines. Unlike earlier electric N-series water pumps, the B46/B48 engine architecture utilizes a mechanical main water pump driven directly by the accessory serpentine belt, providing continuous displacement flow to regulate engine block thermal conditions and prevent cylinder head distortion.

Manufactured from high-density cast aluminum with a precision-machined impeller hub and internal ceramic shaft seal, this water pump assembly is supplied with a pre-formed rubber perimeter sealing profile gasket. Replacing a leaking or noisy mechanical water pump restores consistent thermal management, prevents coolant loss around the pulley shaft bearing, and safeguards thermal management module (heat management module / thermostat) functionality.

Exact Vehicle Compatibility:

Direct-fit OEM mechanical coolant water pump engineered specifically for BMW 2.0L Turbo B46 / B48 Engine Platforms produced between 2019 and 2026:

  • BMW 2 Series (G42 Chassis): 2022–2026 (230i, 230i xDrive)

  • BMW 3 Series (G20 / G21 Chassis): 2019–2026 (330i, 330i xDrive, 330e Plug-In Hybrid)

  • BMW 4 Series (G22 / G23 / G26 Chassis): 2021–2026 (430i, 430i xDrive, 430i Gran Coupé)

  • BMW 5 Series (G30 Chassis): 2017–2023 (530i, 530i xDrive, 530e Plug-In Hybrid)

  • BMW X3 Series (G01 Chassis): 2018–2024 (X3 sDrive30i, X3 xDrive30i)

  • BMW X4 Series (G02 Chassis): 2019–2024 (X4 xDrive30i)

  • BMW X5 Series (G05 Chassis): 2019–2026 (xDrive30i / sDrive30i international variants)

  • BMW Z4 Series (G29 Chassis): 2019–2026 (Z4 sDrive30i)

1.Vehicle Setup & Coolant Draining:Safe cooling system pressure relief and fluid drain.

Safely raise the vehicle on a lift or jack stands. Wait until the engine is completely cool, open the expansion tank cap to relieve system pressure, and remove the lower splash guard. Position a clean fluid catch basin beneath the radiator drain plug and loosen it to drain the engine coolant completely.

2.Serpentine Belt & Pulley Disassembly:Releasing drive belt tension and removing pulley bolts.

Using a Torx/socket driver on the belt tensioner arm, release tension on the drive belt and slip it off the water pump pulley. Unbolt the three mounting bolts holding the drive pulley onto the water pump flange and remove the pulley to expose the pump housing.

3.Water Pump Removal & Mating Surface Cleaning:Unbolting pump housing and surface preparation.

Unbolt the perimeter mounting screws securing the water pump housing (11518482250) to the engine block. Carefully pry the old pump outward, catching residual coolant. Thoroughly clean the engine block mating surface with lint-free cloths and a nylon scraper to remove old gasket residue, corrosion, and dirt.

4.Installation & Vacuum Coolant Bleeding:Torquing bolts, belt installation, and vacuum bleed.

Position the new Genuine BMW water pump with its new rubber gasket flush against the engine block. Insert mounting bolts and torque in a cross pattern to factory specification. Reattach the drive pulley, reinstall the serpentine belt, fill the cooling system using a vacuum refill tool with genuine BMW HT-12 antifreeze mix, and run the automated electric auxiliary pump bleed procedure to purge all trapped air.

Specifications:

  • Part Name: Mechanical Engine Coolant / Water Pump Assembly

  • Engine Family: BMW 2.0L Inline-4 Turbocharged B46 / B48

  • Drive Type: Mechanical Accessory Serpentine Belt Drive

  • Placement on Vehicle: Engine Front Housing, Lower Left

  • Material: High-Density Die-Cast Aluminum Body & Steel Shaft

  • Included Components: Water Pump Assembly, Pre-Formed Rubber Gasket

  • Product Line: Engine Cooling & Thermal Management Components

  • Condition: Brand New BMW Replacement

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Coolant Water Pump (2.0L Turbo B46 & B48) – BMW 2, 3, 4, 5 series & X3, X4, X5 (19-26)
Coolant Water Pump (2.0L Turbo B46 & B48) – BMW 2, 3, 4, 5 series & X3, X4, X5 (19-26)
R 2,500.00
  • FREE NATIONWIDE SHIPPING ON ORDERS OVER R8500

Enquiring about: Coolant Water Pump (2.0L Turbo B46 & B48) – BMW 2, 3, 4, 5 series & X3, X4, X5 (19-26)

Delivery Options

Local Express Delivery  (Coming Soon)

Available within 20km of a MYTY Auto Parts branch, with a target turnaround of 120 minutes from order confirmation AND PAYMENT

Free Delivery

Applies to all orders over R8,500 to standard destinations. Free shipping applies to standard-sized items only. Oversized, heavy-duty, or bulky items are excluded and may incur additional courier charges. Customers are encouraged to request a custom shipping quote prior to placing an order for such items.

Free delivery applies to main provincial city centres only. Remote areas are excluded unless serviced by the designated courier. Orders qualifying for free shipping are dispatched within 2 to 7 business days after payment reflects. If a correctly supplied item is returned, a handling fee applies and return shipping is for the buyer's account.

Standard Courier Delivery

MYTY Auto Parts chooses between Overnight Delivery and Economy Freight for standard orders. If a customer specifies a particular mode of transport, any additional cost is for the customer's account. On free delivery purchases, customers may arrange their own courier to speed up delivery, provided this is planned with MYTY Auto Parts in advance. No compensation is offered for such self-arranged courier collections.

Delivery Timeframes

Metropolitan areas: standard courier timeframes apply. Regional areas (more than 50km from a metropolitan area): 1 to 2 business days. Remote areas (more than 100km from a metropolitan area): 3 to 7 business days. International orders: 14 to 30 working days, subject to courier and customs clearance.

Delivery times exclude weekends and public holidays. Weekend or public holiday deliveries can be arranged at additional cost. Delivery dates are estimates only and time of delivery is not of the essence. The buyer may cancel an order without liability if delivery is more than 30 days late. Overnight deliveries can occasionally be delayed due to circumstances on the courier's side. MYTY Auto Parts cannot be held responsible for such delays.

Excluded and Restricted Areas

The following are excluded from standard delivery and may attract additional charges or require special arrangements: mines, plots, farms, and game reserves; national parks, universities, and power stations; and other rural areas requiring special trips. To avoid extra charges, customers may elect to collect their goods from the nearest Post Office, courier depot, or PostNet branch in their region.

Receiving Your Order

Inspect goods on receipt before signing the courier's documents. Confirm the correct quantity has been received and that items are free of damage. Any damage or shortage must be reported on the waybill at the time of delivery to avoid delays in processing claims. Written notice of non-delivery must be provided within 5 days of the date the goods would ordinarily have been received.

Risk, Insurance and Ownership

Risk in the goods passes to the buyer upon delivery. Title in the goods remains with MYTY Auto Parts until the invoice is paid in full. Buyers must insure goods against theft or damage until the price has been paid in full. Insurance is not automatically included. Customers may request insurance if needed.

Failed or Refused Deliveries

If the buyer fails to take delivery at the agreed time, MYTY Auto Parts may cancel or suspend further deliveries and charge for any loss suffered. If goods cannot be delivered, MYTY Auto Parts may store them, or have them stored by a third party, at the buyer's cost.

Branch Collection

Customers may also collect orders directly from MYTY Auto Parts branches.

Durban: 6 Acaciafield Close, Springfield, Durban | +27 78 684 3454 | Trading hours: Monday to Friday, 8:00 AM to 5:00 PM.

How returns and refunds are handled at MYTY Auto Parts.

MYTY Auto Parts wants customers to shop with confidence. The sections below set out when returns are accepted, who pays for return shipping, and the conditions items must meet to qualify for a refund, exchange, or credit.

1. If MYTY Auto Parts Sends the Wrong Part

  • MYTY Auto Parts covers the cost of return shipping.
  • Once the item is received back in original, unused, resalable condition, the correct part will be dispatched at no extra charge.

2. If You Order the Wrong Part

  • Return shipping is for the buyer's account.
  • Returns are only accepted if the item is unused, in its original packaging, and resalable.
  • Items showing signs of installation, damage, contamination, or wear will not qualify.
  • If a return is rejected, the buyer may either collect the item or pay for re-shipping.

3. General Return Conditions

  • Return requests must be communicated within 5 days of purchase.
  • Items must be securely packaged (for example, with bubble wrap) with all contents included. Poorly packaged returns that arrive damaged will be rejected.
  • Price-based returns (for example, finding the same item cheaper elsewhere) are not accepted under the Consumer Protection Act.
  • All returns are subject to inspection and approval by MYTY Auto Parts management.

4. Restocking Fees

  • Standard correctly-supplied returns: a 15% restocking fee is deducted from the refund amount.
  • Special Orders (non-stock items ordered specifically for the customer): a 20% restocking fee may apply, at the discretion of MYTY Auto Parts.
  • Refunds are processed using the same payment method as the original purchase (EFT to EFT, card to card, cash to cash).

5. Electrical and Electronic Items

  • All electrical and electronic products are tested before dispatch.
  • Due to manufacturer policies, no returns are accepted on electrical or electronic items once dispatched.
  • Electronics are not returnable once fitted. Claims require a certified diagnostic report confirming the fault prior to purchase. Generic fault codes from handheld diagnostic readers are not accepted.

6. Special Products

Android Radios

  • Returns must be requested within 5 days of receipt and include all packaging and accessories.
  • No cash refunds are issued. Store credit may be offered at MYTY Auto Parts' discretion.
  • Courier charges are non-refundable.
  • Items returned without a fault will be rejected and shipping costs are for the customer.
  • Return and warranty claims are processed within 30 days of receipt.

7. International Orders

  • International orders are non-stock items ordered or manufactured specifically on request, with delivery typically in 14 to 30 working days.
  • Refunds will not be issued where goods have been withheld indefinitely by SARS Customs or other law enforcement.

8. Risk and Ownership

  • Risk transfers to the buyer upon delivery or collection. Customers are encouraged to insure goods if needed.
  • Items remain the property of MYTY Auto Parts until paid in full.

9. How to Initiate a Return

Contact MYTY Auto Parts within 5 days of purchase. Quote your invoice number and reason for the return. A reference number must be obtained before goods are returned.

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