Researching the 2019 Porsche Boxster may lead to frightening articles about IMS bearing failures. Understanding this issue's history and its relevance—or lack thereof—to the modern 718 provides essential context.
IMS Bearing History
The intermediate shaft (IMS) bearing issue affected certain Boxsters from 1997-2008 (986 and early 987 generations). These used naturally aspirated flat-6 engines with a bearing design that could fail catastrophically, destroying the engine. It was a significant concern for those generations.
718 Boxster Design Difference
The 2019 Boxster (718 generation) uses turbocharged flat-4 engines that share no architecture with the affected flat-6 engines. The IMS bearing concern simply doesn't apply—it's a different engine family with different internal design. The 718's engine has no intermediate shaft bearing in the problematic configuration.
Turbocharged Flat-4 Reliability
The 2.0L and 2.5L turbocharged flat-4 engines in the 718 have proven reliable since their 2017 introduction. Common maintenance items include spark plugs, ignition coils, and typical wear items—but not IMS bearings because they don't exist in this design.
What to Actually Monitor
For 718 Boxster owners, focus on appropriate maintenance: regular oil changes with Porsche-approved oil, cooling system maintenance, transmission fluid service (PDK), and turbocharger care including proper warm-up and cool-down procedures.
Pre-Purchase Considerations
When purchasing a used 718 Boxster, verify complete service history, check for warning lights or pending codes, assess convertible top operation, and confirm all systems function properly. IMS inspection is not on the list.
Legacy Model Awareness
If considering older Boxsters (986, 987), IMS bearing inspection becomes relevant. Many owners have upgraded to aftermarket solutions. This doesn't apply to the 718 generation.