For those considering a dive into the world of German engineering with a 2007 Bmw 335i, it’s crucial to approach with open eyes regarding potential maintenance and common issues. Often lauded for its performance, the E90 335i, particularly the 2007 model year, powered by the N54 engine, has developed a reputation – both positive and negative – within the automotive community. Let’s dissect some of the frequently discussed points and separate fact from fiction concerning the 2007 BMW 335i.
One persistent myth revolves around turbocharger failures. Contrary to some online chatter, turbo issues aren’t necessarily a widespread plague for the 2007 335i. While turbo replacements are a cost to consider if they do fail, costing around $2,500, many owners experience no such problems. Similarly, injector problems are often overstated for this specific year. In fact, some argue that the 328i and even newer 335i models might face injector issues more frequently than the 2007 variant. Injector replacement, when needed, can be approximately a $1,000 expense.
A proactive measure BMW took with all 335 models is the fuel pump recall. The High-Pressure Fuel Pump (HPFP) was a known concern, and BMW addressed this with a recall, offering a replacement that, according to some owners, has proven reliable for over a decade or 120,000 miles. While HPFP issues can occur, especially in older models, the recall and subsequent replacements have mitigated this concern for many 2007 BMW 335i owners. If the HPFP does require replacement outside of warranty, it’s a significant cost to be aware of.
Carbon buildup on the intake valves is a more legitimate concern for all direct injection engines, including the N54 in the 2007 335i. Due to the nature of direct injection, carbon deposits can accumulate over time. Many owners report needing intake valve cleaning around the 60,000-mile mark, which can be an added maintenance item. This is not exclusive to BMW; various manufacturers using direct injection engines face similar carbon buildup issues.
Moving beyond engine-specific concerns, the E90 chassis, shared by the 2007 335i, has its own set of common points. The Oil Filter Housing Gasket (OFHG) is a known weak point and often requires replacement. Many owners tackle this DIY around the 60,000-mile mark. Conversely, valve cover gasket issues are reportedly less frequent in this model year.
Preventative maintenance is key for the 2007 BMW 335i. Water pumps and thermostats are components that, based on mileage and age, should be considered for replacement. Around the 60,000-mile mark, some owners opt for preemptive replacement, with parts costing around $440. Similarly, while belt tensioners may not present immediate issues, replacing them around 100,000 miles is a prudent step to avoid future problems.
The Dynamic Stability Control (DSC) system can sometimes exhibit issues, often related to the Bosch DC electric motor within the module. Graphite debris buildup on the brush holder can cause brush sticking, leading to DSC failures. While complete unit replacements are costly, companies like Modulemasters offer repair services for around $250, offering a more economical solution. DIY rebuilds are also possible for mechanically inclined owners.
In conclusion, while the 2007 BMW 335i has its share of potential maintenance items, many perceived “common problems” are either overstated or addressed by recalls and preventative maintenance. Focusing on well-maintained examples, potentially those with higher mileage where some of these common issues have already been addressed, might be a more sensible approach than seeking out a low-mileage “garage queen” that could still be harboring age-related maintenance needs. Thorough pre-purchase inspections and reviewing service history are crucial steps when considering a 2007 BMW 335i to ensure a more informed and potentially rewarding ownership experience.
