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BMW 640i (N55) Common Leaks & Cooling Repairs

Reviving a Classic: 2013 BMW 640i Essential Maintenance & Repairs The 2013 BMW 640i is a true driver’s car, offering a perfect blend of luxury, aggressive st...

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HPG Auto Repair

BMW 640i (N55) Common Leaks & Cooling Repairs

Reviving a Classic: 2013 BMW 640i Essential Maintenance & Repairs

The 2013 BMW 640i is a true driver’s car, offering a perfect blend of luxury, aggressive styling, and the smooth power of the renowned N55 3.0-liter turbocharged inline-six engine. However, as these beautiful machines cross the 10-year mark, specialized care becomes crucial to keep them performing flawlessly.

At HPG Auto Repair, our expert technicians specialize in European vehicles, knowing the exact intricacies of the BMW lineup. Recently, we had a beautiful 2013 BMW 640i in our shop for some major preventative maintenance and necessary upgrades. Here is a behind-the-scenes look at what we recently changed to get this Grand Tourer back to peak performance.

BMW N55 Engine Valve Cover Gasket Leak Repair

Tackling the Notorious Valve Cover Gasket Leak

One of the most common issues with the BMW N55 engine is a failing valve cover gasket. Over time, the rubber gasket hardens and degrades due to constant heat cycles, leading to oil seeping onto the hot exhaust manifold.

If you own a BMW 6-series and notice a faint smell of burning oil through your AC vents, or see light smoke coming from the passenger side of the engine bay, this is likely the culprit.

Our expert technicians carefully removed the old, brittle gasket and replaced it with a premium OEM-quality replacement. We also inspected the plastic valve cover itself for hairline cracks, a standard procedure at HPG Auto Repair to ensure the repair lasts for years to come.

Upgrading the BMW 640i Factory Charge Pipe

Upgrading the Flimsy Factory Charge Pipe

For the 2013 BMW 640i, the factory charge pipe is made of plastic. Over years of dealing with pressurized boost and high engine bay temperatures, this plastic becomes incredibly fragile. It is not a matter of if it will crack and blow off, but when.

To ensure maximum reliability for our client, we swapped out the aging factory unit. A blown charge pipe will immediately put the car into "Limp Mode" and result in a total loss of turbo boost. By replacing this component proactively, we saved the owner from a stressful roadside breakdown.

BMW 640i Cooling System Overhaul Water Pump

Overhauling the Cooling System

BMW’s electric water pumps are highly efficient, but they are also known to fail abruptly around the 70,000 to 90,000-mile mark. When a water pump fails on a 640i, the engine will overheat very rapidly.

While we were doing our comprehensive health check on this 640i, we performed a complete cooling system overhaul. This included installing a brand-new water pump and thermostat, and flushing the system with factory-approved BMW coolant.

Why Choose HPG Auto Repair for Your BMW?

BMWs are highly sophisticated driving machines that require specialized knowledge and proprietary tools. Taking your 640i to a general mechanic can often lead to misdiagnoses and costly mistakes. Here is why local BMW owners trust HPG Auto Repair:

  • Expert Technicians: Our team is highly trained specifically in BMW electrical and mechanical systems.
  • Dealership-Level Diagnostics: We use the exact same advanced diagnostic software used by the factory to pinpoint issues accurately.
  • OEM Quality Parts: We refuse to compromise on quality, utilizing original equipment manufacturer (OEM) parts for maximum reliability.
  • Transparent Communication: We provide photos and detailed explanations of all needed repairs before any work begins.

Keep Your BMW Driving Like New

Is your BMW 640i, 3-Series, or X5 due for maintenance? Don't wait for a minor wear-and-tear issue to turn into a major engine repair. Proper, proactive maintenance is the key to enjoying your Ultimate Driving Machine for years to come.

Contact HPG Auto Repair Today!
Protect your investment and experience dealership-quality service without the dealership price tag. Visit us online at HPGAutoRepair.com to schedule your next service, or call our expert technicians today to book a comprehensive vehicle inspection.

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