BMW F10 (2010–2017): A Buyer’s Guide to the Diesel Versions

The short version. The BMW F10/F11 is the executive sedan and wagon produced from 2010 through 2017. The main risk when buying is the N47 diesel and its timing chain, which can need replacement as early as 62,000 miles. Your best bet is a car built after the July 2013 facelift, where the chain was revised. If you’re not ready for chain, turbo, and injector trouble, shop the gasoline versions instead.

The Problem: What to Expect From a Diesel F10

You’ve found a well-priced 2011 BMW F10 with the 520d diesel on the market. The car looks great, but a few months in a rattling noise shows up from the engine bay, performance drops off, and a diagnostic scan flags timing system faults. Sound familiar? That’s the typical scenario for early-build diesel F10s.

The model replaced the E60, and build quality improved substantially—owners and mechanics agree on that. But the diesel engines remained the weak point. Here’s what to check before you buy.

Symptoms: Signs of Failing Components

• Rattling noise while the engine runs—timing chain wear
• Smoky exhaust and sluggish acceleration—turbo or fuel injectors
• Vibrations and noise while turning—transfer case
• Sagging rear suspension—air springs
• Damp carpets in the cabin—leaks through the door seals
• 360° surround-view cameras not working
• Squeaks around the instrument panel

Causes: Why the Diesels Are More Trouble Than the Gasoline Engines

The timing chain on N47 diesels (pre-2013) is the most critical component. It can stretch or snap, and that means an engine rebuild. The problem is so widespread that BMW covered the repair under warranty in some cases. After the 2013 facelift the chain was revised, and reliability improved.

The turbo on the 2.0-liter diesels (518d, 520d, 525d) fails prematurely because of the design of its lubrication and cooling system. Fuel injectors on every diesel version are another weak point—repairs are expensive because OEM parts cost so much.

The EGR valve on the 525d (218 hp) clogs up, and power drops as a result. Regular cleaning is a must. The transfer case on the 3.0-liter diesels (530d, 535d) can fail as early as 43,000 miles—a serious failure that requires replacing the entire unit.

The Fix: How to Pick a Reliable One

Favor post-2013 facelift cars. They have fewer of the typical problems, especially with the diesel engines. Check the recall campaign history for 2016–2017—find out whether the car was covered and whether the work was done.

Checking the timing chain on N47 diesels: listen for noise as the engine runs and check the tension. That characteristic rattle is a sign of wear. By the book, the chain never needs replacing, but in practice it can become necessary as early as 62,000 miles.

Checking the turbo and injectors: watch the exhaust for smoke, test acceleration response, and make sure there are no engine fault codes. Transfer case on the 530d/535d: check for vibrations and noise while turning.

Suspension and body: on the wagons, inspect the rear air springs—does the suspension hold pressure, any sagging? Check the door seals and drain holes, and inspect the carpets for moisture. Test every surround-view camera—shift into reverse and check the picture.

Prevention and Maintenance

• Service interval: up to 19,000 miles or 2 years, but many owners cut it to 9,300 miles, especially on the diesels
• Regular EGR valve cleaning is a must
• Interior squeaks are fixed by applying felt tape to the trouble spots
• Most electronic glitches are resolved with a software reflash—no parts needed
• Keep in mind: parts run 30% more than for mainstream brands, and labor costs above the market average

The Bottom Line

The BMW F10 is a well-built executive sedan, but the diesel versions demand careful shopping. Priority goes to post-2013 facelift cars with the revised timing chain. If you’re not prepared for potential chain, turbo, and injector trouble, consider a gasoline version. The diesels are more trouble-prone than the gasoline engines, but properly maintained they’re economical: a 520d can return over 39 mpg in gentle driving. The N57 engines (3.0-liter) are considered more reliable, but they have their own Achilles’ heel—the transfer case. Insurance on the F10 runs 15% higher than on a Peugeot 508.