2009–2011 BMW E90 335d | M57 3.0L Twin-Turbo Diesel
The 2009–2011 BMW E90 335d is BMW's best-kept diesel secret. With DFlasher, add up to +109 HP and +181 ft-lbs directly from your phone.
VEHICLE PROFILE
| Specification | Value |
|---|---|
| Model Year | 2009–2011 |
| Engine | M57 3.0L Twin-Turbo Diesel |
| ECU | Bosch EDC17CP09 |
| Stock Horsepower | 286 HP (crank) / 265 WHP |
| Stock Torque | 427 lb-ft |
| Transmission | 6-Speed Automatic (ZF 6HP26) |
| Drivetrain | RWD |
| 0–60 mph | 5.7 sec (stock) |
The BMW E90 335d holds a unique place in automotive history as the only diesel-powered 3 Series ever sold in North America. Produced from 2009 to 2011, the 335d pairs BMW's legendary M57 3.0-liter twin-turbo diesel inline-six with a refined rear-wheel-drive chassis. The result is a sedan that delivers 286 HP and a staggering 427 lb-ft of torque from the factory — all while achieving over 30 MPG on the highway. The M57 uses a sequential twin-turbo system with a small turbo for quick low-RPM response and a larger turbo for sustained high-RPM power. Combined with piezo injectors, a common rail fuel system operating at up to 26,000 PSI (1,800 bar), and BMW's sophisticated EDC17 engine management, the 335d is one of the most technologically advanced diesel platforms ever fitted to a 3 Series. The M57's low-end torque delivery is what makes it such a compelling platform for tuning: the engine's conservative factory calibration leaves significant headroom that DFlasher's maps are designed to unlock safely and reliably.
BENEFITS
BMW's factory calibration is designed to meet global emissions regulations and warranty targets. That means your 335d has untapped potential waiting to be released.
The stock M57 is conservatively tuned from the factory. DFlasher extracts the performance BMW left on the table — up to +109 HP and +181 ft-lbs of torque with Stage 2. Even Stage 1 delivers a transformative +68 HP increase that completely changes the character of the car. The M57's robust bottom end and overbuilt turbo system are designed to handle significantly more power than BMW delivers from the factory.
One of the most common complaints about the stock 335d is turbo lag at low RPM. DFlasher's maps optimize boost delivery timing and pedal mapping to sharpen throttle response across the entire rev range. The sequential twin-turbo system spools faster, the transition between the small and large turbos becomes seamless, and the car feels significantly more responsive in everyday driving situations like highway merging and passing.
Under normal driving conditions, fuel economy is typically maintained with Stage 1. The optimized maps improve combustion efficiency, though using the additional power will naturally consume more fuel.
Stage 1 is specifically engineered to run safely on completely stock hardware. Every map parameter — boost pressure, exhaust gas temperature, injection timing, and rail pressure — stays within the safe operating envelope of the stock turbochargers, injectors, and fuel system. All factory safety limiters remain active. DFlasher's Stage 1 maps have been developed and refined over a decade across hundreds of 335d vehicles, making it one of the most thoroughly tested M57 calibrations available.
335D TUNING STAGES
Every DFlasher licence includes access to all four tuning stages. Switch between them at any time directly from the app — no additional cost, no waiting.
Power
265 HP
stock
Torque
425 ft-lbs
stock
Your 335d stays at factory power levels while you gain full diagnostic access to the Bosch EDC17CP09 ECU. Monitor live data streams including boost pressure, exhaust gas temperature, rail pressure, injection timing, and dozens of other parameters in real time. Read and clear diagnostic trouble codes (DTCs) without a dealer visit. Stage 0 is the perfect starting point for any 335d owner who wants to understand their engine before committing to a performance tune.
Recommended for: 335d owners who want powerful diagnostics and live monitoring without any power modifications.
Compatible Optimization Variants:
Power
0 HP
+68 HP over stock
Torque
0 ft-lbs
+100 ft-lbs over stock
The most popular tune for the BMW 335d. Stage 1 optimizes boost pressure, injection timing, and torque limiters to deliver a substantial and immediately noticeable power increase. All factory safety limiters remain active across every parameter. This tune is designed from the ground up for reliable daily driving on completely stock hardware — no modifications required. The 335d's already impressive low-end torque becomes genuinely addictive with Stage 1, making highway merging and on-ramp pulls effortless. EGR, SCR, and DPF optimization variants are available for vehicles with emissions system modifications.
Recommended for: 335d daily drivers wanting more performance on stock hardware.
Compatible Optimization Variants:
Previously known as the JR 2.0
Power
0 HP
+109 HP over stock
Torque
0 ft-lbs
+181 ft-lbs over stock
The ultimate power tune for the BMW 335d. Stage 2 pushes the M57 to its full potential with aggressive boost pressure, advanced injection timing, raised torque limiters, and increased fueling. This calibration transforms the 335d into a genuinely fast car — 374 HP and 606 ft-lbs of torque through the rear wheels makes for an exhilarating driving experience. Supporting modifications are required to ensure reliability at these power levels. The 335d's ZF 6HP26 automatic transmission handles the increased torque well, though a transmission tune is recommended for the best shift behavior at higher power.
Recommended for: 335d enthusiasts with supporting modifications (delete pipe, upgraded intercooler).
Required Optimization:
Previously known as the JR 2.8
Already have a tuner you trust? DFlasher's Custom stage gives you full read/write access to the EDC17CP09 ECU. Upload any compatible map file directly through the app and flash it to your 335d in minutes. This opens the door for professional tuners to create bespoke calibrations tailored to your exact setup — whether that's a built engine, larger turbos, or a specific combination of supporting modifications. Your tuner gets the same ECU access they would have on a bench, but you get to flash from your phone without ever removing the ECU from the car. Many 335d owners use the Custom stage to run calibrations from their preferred diesel tuning shop, combined with DFlasher's convenience of wireless mobile flashing and built-in diagnostic monitoring.
Recommended for: 335d owners working with professional tuners on bespoke calibrations.
Optimization variants depend on your custom map configuration.
EVERYTHING YOU NEED
Flash tuning maps directly to your 335d's EDC17 ECU from your phone via Bluetooth. No laptop, no cables, no dealer visit. The entire process takes under 10 minutes and can be done in your driveway.
View real-time engine data including boost pressure, exhaust gas temperature, rail pressure, injection timing, and dozens of other parameters specific to the M57 platform.
Pre-built OTS maps for Stage 0, 1, and 2 — each with multiple optimization variants for different hardware configurations. Or upload your own custom map from any tuner.
One-tap return to 100% stock calibration, any time. Ideal before dealer visits, emissions testing, or if you sell your 335d. Full ECU recovery in under 5 minutes.
Read and clear fault codes without a dealer visit. Full DTC library with descriptions specific to the 335d's M57 engine and EDC17 ECU. Instant troubleshooting at home.
Designed for your phone from the ground up. Available on iOS and Android. No laptop, no cables, no dealer appointment. Just your phone, the OBD-II adapter, and your 335d.
STRAIGHT ANSWERS
We know ECU tuning can feel like a big step. Here are honest answers to the questions every 335d owner asks before pulling the trigger.
The Magnuson-Moss Warranty Act protects consumers from blanket warranty denials due to aftermarket modifications. A dealer must prove that a specific modification caused a specific failure to deny warranty coverage. That said, ECU tuning can affect warranty claims related to the engine and drivetrain. DFlasher's factory reset feature lets you return to 100% stock calibration before any dealer visit — leaving no trace of aftermarket tuning on the ECU. Most 335d vehicles are well past their factory warranty period, but the factory reset remains valuable for resale and peace of mind.
Yes — that is exactly what Stage 1 is designed for. Every calibration parameter stays within the safe operating envelope of the stock turbochargers, injectors, fuel system, and transmission. All factory safety limiters for boost pressure, exhaust gas temperature, and injection timing remain fully active. DFlasher's Stage 1 maps have been refined over 10+ years across hundreds of M57-equipped BMWs. This is not a generic "one size fits all" flash — it is a purpose-built calibration for the 335d's specific hardware.
Absolutely. DFlasher includes a one-tap factory reset feature that restores your 335d's ECU to its original factory calibration. The process takes approximately 3–5 minutes and is done wirelessly from your phone. You can switch back to stock before a dealer visit, before an emissions test, or simply if you change your mind. There is no permanent modification to the ECU — the factory reset returns every parameter to BMW's original values.
Under 10 minutes from start to finish. The initial ECU read and write process takes approximately 3–5 minutes. Subsequent map changes are even faster since the ECU has already been initialized. The entire process is done wirelessly via Bluetooth from your phone. No laptop, no cables, no ECU removal required. You can flash your 335d in your driveway, your garage, or any location where you can safely park with the engine off and ignition on.
GET STARTED
You need both the licence AND adapter to tune your 335d with DFlasher.
COMMON QUESTIONS
DFlasher supports the 2009–2011 BMW E90 335d sedan sold in North America. This is the only generation of 335d offered in the US and Canadian markets. The 335d uses the M57 3.0L twin-turbo diesel engine with a Bosch EDC17CP09 ECU, which is fully supported by DFlasher. European-market 335d models with different ECU variants are not currently supported.
DFlasher's Stage 1 tune adds approximately +68 HP to your BMW 335d, bringing total output from 265 WHP to 333 WHP. Torque increases by +100 ft-lbs, from 425 ft-lbs to 525 ft-lbs at the wheels. These gains are achieved through optimized boost pressure, refined injection timing, and adjusted torque limiters — all while keeping safety limiters fully active. No hardware modifications are required.
Yes. DFlasher's Stage 1 tune is specifically calibrated for daily driving reliability on stock hardware. All factory safety limiters for boost pressure, exhaust gas temperature, and injection timing remain fully active. The maps have been developed and refined over 10+ years across hundreds of M57-equipped BMW vehicles. Stage 1 stays within the safe operating envelope of the stock turbochargers, injectors, and fuel system.
Absolutely. DFlasher includes a one-tap factory reset feature that restores your 335d's ECU to its original factory calibration. The process takes approximately 3–5 minutes and is done wirelessly from your phone. You can return to stock before dealer visits, emissions testing, or when selling the vehicle. There is no permanent modification to the ECU.
No modifications are required for Stage 1. The tune is designed to work safely within the limits of the stock turbochargers, injectors, fuel system, and ZF 6HP26 automatic transmission. You can install Stage 1 on a completely stock 335d and drive it daily with confidence. Optional optimization variants are available if your 335d has emissions system modifications (EGR, SCR, DPF deletes).
Stage 2 requires DPF + SCR + Swirl + EGR optimization, which means these emissions components must be removed or bypassed. Recommended supporting modifications include a delete pipe (replacing the DPF and SCR catalysts), an upgraded intercooler for better charge air cooling at higher boost pressures, and optionally an intake upgrade. A transmission tune is also recommended to optimize shift points and torque converter lockup behavior at the higher power levels.
DFlasher offers several key advantages over traditional tuning methods. You flash directly from your phone via Bluetooth — no laptop, no bench, and no ECU removal required. You can switch between tuning stages instantly without waiting for a tuner to send a new file. Factory reset is available at any time with a single tap. Built-in diagnostics and live monitoring eliminate the need for separate scan tools. Traditional bench flashing requires physically removing the ECU from the car and shipping it, which means days of downtime. DFlasher puts the same calibration quality in your pocket.
Under normal driving conditions, many 335d owners report similar or even slightly improved fuel economy with Stage 1. The optimized fuel injection timing and combustion efficiency mean you get more usable energy from each injection event, which can translate to less throttle input for the same speed. However, if you drive aggressively and frequently use the extra power, fuel consumption will increase. Stage 2's more aggressive fueling calibration typically results in a slight decrease in fuel economy compared to stock.
Still have questions? Contact Support
Join 500+ BMW diesel owners who trust DFlasher for precision ECU tuning. Up to +109 HP from your phone.