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Engine Oil Cooler
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2006 - 2016 BMW Z4 Oil Cooler Assembly (OEM)

Only 1 left in stock
$399.95

ℹ️ Product Notes

This is a used part. It is an Engine Oil Cooler designed for vehicles with a 3.0L engine.

Mounts to the oil filter housing. Fits 2.0L and 3.0L gas engines. Always use new gaskets when installing to prevent oil leaks.
Condition: Excellent (A)
Like new, minimal to no wear
44,167 miles
Odometer reading when part was removed
See Other BMW Z4 Engine Oil Coolers
SKU #
4633402-3111MB.813

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

BMW
Z4 2006-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
3.0i Convertible 2006 L6 3.0L RWD | Automatic
3.0i Convertible 2006 L6 3.0L RWD | Manual
Coupe 3.0si Coupe 2006 - 2008 L6 3.0L RWD | Manual
Coupe 3.0si Coupe 2006 - 2008 L6 3.0L RWD | Automatic
Roadster 3.0i Convertible 2006 - 2008 L6 3.0L RWD | Manual
Roadster 3.0i Convertible 2006 - 2008 L6 3.0L RWD | Automatic
Roadster 3.0si Convertible 2006 - 2008 L6 3.0L RWD | Manual
Roadster 3.0si Convertible 2006 - 2008 L6 3.0L RWD | Automatic
3.0si Convertible 2007 - 2010 L6 3.0L RWD | Manual
3.0si Convertible 2007 - 2010 L6 3.0L RWD | Automatic
sDrive30i Convertible 2009 - 2011 L6 3.0L RWD | Manual
sDrive30i Convertible 2009 - 2011 L6 3.0L RWD | Automatic
sDrive35i Convertible 2009 - 2016 L6 3.0L Turbo RWD | Manual
sDrive35i Convertible 2009 - 2016 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive35i Convertible 2011 - 2013 L6 3.0L RWD | Automatic
sDrive35i Convertible 2011 - 2013 L6 3.0L RWD | Manual
sDrive35i Convertible 2011 - 2013 L6 3.0L Turbo RWD | Automatic
sDrive35is Convertible 2011 - 2016 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive20i Convertible 2012 - 2013 L4 2.0L Turbo RWD | Automatic
sDrive20i Convertible 2012 - 2013 L4 2.0L Turbo RWD | Manual
sDrive28i Convertible 2012 - 2016 L4 2.0L Turbo RWD | Manual
sDrive28i Convertible 2012 - 2016 L4 2.0L Turbo RWD | Automatic
Design Pure Traction Convertible 2014 L4 2.0L Turbo RWD | Manual
Design Pure Traction Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic
M Sport Convertible 2014 - 2016 L4 2.0L Turbo RWD | Manual
M Sport Convertible 2014 - 2016 L4 2.0L Turbo RWD | Automatic
M Sport Convertible 2014 - 2016 L6 3.0L RWD | Manual
M Sport Convertible 2014 - 2016 L6 3.0L RWD | Automatic
sDrive18i Convertible 2014 L4 2.0L Turbo RWD | Manual
sDrive18i Convertible 2014, 2016 L4 2.0L Turbo RWD | Automatic
sDrive35i Pure Traction Convertible 2014 L6 3.0L Turbo RWD | Automatic Dual Clutch
sDrive18iA Convertible 2015 L4 2.0L Turbo RWD | Automatic

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Is your BMW showing signs of oil cooler trouble? Here's how to tell if your oil cooler assembly might be failing:

  • Oil Leaks: Look for oil puddles under your car, especially near the front. A failing oil cooler often leaks.
  • Overheating: If your engine temperature gauge is higher than usual, the oil cooler might not be doing its job.
  • Milky Oil: Check your oil dipstick. If the oil looks milky or frothy, it could mean coolant is mixing with the oil, which can happen with a bad oil cooler.
  • Low Oil Pressure: The oil pressure warning light might come on if the oil cooler isn't working right.

How to test if it's the oil cooler:

  1. Check for visible leaks around the oil cooler assembly.
  2. Pressure test the cooling system to see if pressure drops, indicating a leak into the oil system.
  3. Inspect the oil cooler for cracks or damage.

Common causes of failure:

  • Age and Wear: Over time, the seals and gaskets in the oil cooler can dry out and crack.
  • Corrosion: Exposure to road salt and other elements can corrode the oil cooler.
  • Overheating: Repeated overheating can damage the oil cooler.
  • Impact Damage: Road debris can hit and damage the oil cooler.

Buyer's Checklist

What to look for when buying an oil cooler assembly:

  • Check the Condition: If buying a used part, look for signs of damage or corrosion. Make sure it's clean and free of debris.
  • Inspect the Seals: Check the seals and gaskets for cracks or damage.
  • Verify Compatibility: Although this part fits many models, double-check that it's the right one for your specific BMW.

Quality indicators:

  • OEM Markings: Look for the original manufacturer's markings.
  • Material Quality: Check the quality of the metal and plastic parts.
  • Warranty: A warranty can give you peace of mind.

What's included:

  • The oil cooler assembly itself.
  • Sometimes, new seals or gaskets are included. Check the product description.

Installation Overview

Replacing the oil cooler assembly is a medium-difficulty job.

  • Difficulty Level: Medium
  • Estimated Time: 2-4 hours

Special tools needed:

  • Socket set
  • Torque wrench
  • Drain pan
  • Coolant

Critical steps and tips:

  1. Drain the engine oil and coolant.
  2. Disconnect the oil lines and coolant lines from the oil cooler.
  3. Remove the old oil cooler assembly.
  4. Install the new oil cooler assembly with new seals and gaskets.
  5. Reconnect the oil lines and coolant lines.
  6. Refill the engine oil and coolant.
  7. Bleed the cooling system.

DIY or Professional?

  • If you're comfortable working on cars and have the right tools, you can probably do this yourself. Otherwise, it's best to have a professional install it.

Buying Options

Here's a comparison of your buying options:

  • Used OEM: These are genuine factory parts that have been tested and inspected. They offer great value.
  • Refurbished OEM: These are factory parts that have been professionally restored with new components.
  • New Aftermarket: These are brand new third-party parts made to meet OE specifications.

Used OEM:

  • Best value for your money.
  • Genuine factory part.
  • Tested and inspected to ensure it works.

Refurbished OEM:

  • Factory part restored to like-new condition.
  • May have new seals, gaskets, or other components.

New Aftermarket:

  • Brand new part.
  • Made to meet OE specifications.
  • Can be a good option if you want a new part.

Typical Lifespan

The oil cooler assembly typically lasts 75,000 to 150,000 miles.

Factors that affect longevity:

  • Driving Conditions: Stop-and-go driving and extreme temperatures can shorten its lifespan.
  • Maintenance: Regular oil changes and coolant flushes can help extend its life.
  • Quality of Parts: Using high-quality parts can also extend its life.

Price Ranges

Here's a general idea of price ranges:

  • Used OEM: $75 - $200
  • Refurbished OEM: $150 - $300
  • New Aftermarket: $200 - $400

Labor costs for installation can range from $200 to $500, depending on the shop and your location.

Total job cost estimate:

  • DIY: $75 - $400 (parts only)
  • Professional Installation: $275 - $900 (parts and labor)

Vehicle-Specific Notes

Some BMW models in this range are known to have issues with the oil filter housing gasket, which is located near the oil cooler. Leaks from this gasket can sometimes be mistaken for oil cooler leaks.

Check for any Technical Service Bulletins (TSBs) related to the oil cooler or cooling system for your specific model year.

Verification After Install

After installing the new oil cooler assembly:

  1. Check for leaks around the oil cooler and oil lines.
  2. Monitor the engine temperature gauge to make sure it's running at the normal temperature.
  3. Check the oil level to make sure it's correct.
  4. Listen for any unusual noises.

If you notice any leaks, overheating, or other problems, take your car to a mechanic right away.

FAQ

Q: How do I know if my oil cooler is leaking?
A: Look for oil puddles under your car, especially near the front. Also, check for oil on the oil cooler itself.

Q: Can I drive with a leaking oil cooler?
A: It's not recommended. A leaking oil cooler can cause your engine to overheat and can lead to serious engine damage.

Q: Is it hard to replace an oil cooler myself?
A: It's a medium-difficulty job. If you're comfortable working on cars and have the right tools, you can probably do it yourself. Otherwise, it's best to have a professional install it.

Q: What happens if my oil cooler fails?
A: Your engine can overheat, which can lead to serious engine damage. You may also experience low oil pressure.

Q: How often should I replace my oil cooler?
A: The oil cooler typically lasts 75,000 to 150,000 miles.

Part Specifications

OEM Part Numbers:

  • BMW: 11 42 7 525 333, 11427525333, 7525333

Fits Years: 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

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