BMW 3 Series E46 330d Diesel Chip Tuning Box

Release the true power, economy and driveability of your BMW - safely, easily and in minutes with a CHIP Express™ plug-in upgrade!


More Power

Power Before
135 kW / 181 bhp
Power After
166 kW / 223 bhp
Power Max
183 kW / 246 bhp

More Torque

Torque Before
288 lbf/ft
Torque After
359 lbf/ft
Torque Max
413 lbf/ft

After figures show the power your vehicle will produce on the supplied settings. Max figures show the power your vehicle could produce on a higher setting. More Information


Gallery

Diesel Tuning Chip
Diesel Tuning Kit
Diesel Tuning Chip in Hand
Diesel Tuning Video

The only tuning kit that comes with everything you need:

  • The chip (can be re-programmed if you change vehicle)
  • Engine specific photo instructions
  • A plug-in cable harness for your engine
  • A quick release Velcro chip mounting pouch
  • Reusable Velcro cable ties
  • A blanking plug to revert to stock easily

If you’re not delighted simply return goods postmarked within 28 days for a 100% refund.

Order Today

BMW 3 Series E46 330d

  • Power: 184 PS / 135 kW / 181 bhp
  • Torque: 390 Nm / 288 lbf/ft
  • Option: xd / 2000-2003
  • Availability: In Stock

Rating:
★★★★★ 5.0 (19 reviews)

Price: £545 £445 $563 USD Estimate More Info

Choose Warranty: Why Extend?

  • Traceless once removed
  • 28 Day Money Back Guarantee

Why choose CHIP Express™?

Royal Mail Global Shipping
Plug-in Non-Permament
Money Back Guarantee
DPF, EGR, EGT & ECU Safe
Auto & Sports Mode Compatible
Up to 5 Years Warranty

Achieve a guaranteed increase in performance from a name synonymous with digital diesel tuning systems – CHIP Express™.


Product Details

Unlike "generic" diesel tuning systems, this advanced, self fit chip will be programmed specifically to optimise your BMW 3 Series E46 330d. And because it works in conjunction with your on-board computer rather than altering it, all engine safety functions remain operational. What's more, the system can be easily unplugged, leaving no trace of fitment, returning your vehicle to factory standard at any time.

The CHIP Express™ system simply plugs in using connectors which are identical to those originally fitted by the manufacturer - there are no wires to cut, just follow the supplied photo-instructions for your specific engine and you'll have the job done in minutes. Once installed, you will immediately feel the transformation. You'll pull away with ease, climb hills effortlessly and enjoy extra reserves of power when you need them. Your whole driving experience will be enhanced thanks to the significant boosts in performance. You'll feel the improved acceleration, the cleaner, crisper throttle response and enjoy smoother gear changes – turbo lag and hesitation off the mark will be replaced by a faster, more linear and instantaneous delivery of performance; you'll also appreciate a reduction in engine noise. Improvements in torque will transform low end dynamics and allow you to keep RPM's down by holding taller gears while using less throttle for similar speeds, helping you save fuel. Remember while most tuning companies aim to provide maximum power our aim is to also refine drivability and in gear flexibility, providing a wider spread of usable performance where you need it most!

Better Economy

By making your engine significantly more fuel-efficient, the CHIP Express™ digital tuning system means you can achieve substantially better economy from your E46 330d too. You'll drive on a smaller throttle opening for a given speed and change gear less, getting you further on a tank of diesel!

Before
After
 
 

* Typical economy results between 8-16% yet can produce up to 20% depending on engine tolerances, driving style and conditions. CHIP Express™ diesel tuning chips may also increase the maximum speed of your vehicle by up to 5%; applies to non speed limited vehicles only.

Ever wondered why the manufacturer didn't program it this way as standard?

Vehicle manufacturers are forced to compromise when they set up the engine's ECU, to create vehicles which will operate in a wide variety of markets and conditions.

  • Many countries, for example, impose emission controls which are far more rigorous than those we have in the UK.
  • Other countries relate their vehicle taxation systems to power output rather than engine size.
  • Some, like the UK, impose higher taxation for different emission levels.
  • In many cases power is deliberately restricted for future use.
  • Finally the manufacturers themselves often produce several different performance variants of a given model.

To meet all these different needs, they re-program the vehicle's ECU to change the engine requirements. Now, thanks to CHIP Express™ class-leading, state of the art solutions, you can benefit from greater low-down torque for improved pulling power, higher output for better out-and-out performance, and better fuel economy!

Feedback From Our Customers

Andrew from Thame with a BMW 3 Series E90 320d 177 said: I have a 58 reg BMW 320D AUTO and I have recently fitted one of your Chip Express tuning systems to it. Ill be honest in that the car certainly did not need any more power than it already had. I have had four previous turbo vehicles re-mapped and was always very impressed with the results in terms of power and economy gains. Having read alot of negative comments about tuning boxes I was very sceptical about trying one. I decided to take the plunge though, for the fact that with this system I can remove it (in 5 minutes!!!) for when the car goes to the dealer as it is still under warranty. I can honestly say that this system is equally as good as a remap, but with the added bonus of being able to remove and fit in minutes. Also I now find that the Auto box shifts up gears at lower revs and holds gears under strain much easier. And WOW it really moves now!! Its easy to forget your only driving a 2.0 litre diesel. All in all I am very impressed and would recommend you to my friends and family. Fantastic product!! Well done.
Dr Mahmoud from Waterford with a BMW 3 Series E90 320d 177 said: Many thanks for your prompt delivery (ordered Friday, received Monday in the Republic of Ireland). May I suggest that you change the name to TORQUE Express! I already had a tuning box which produced a max of 215PS for my E90 320d BMW (177PS). Whilst decent enough, there was considerable piston slap under hard acceleration. The CHIP Express tuning system provided a much quieter and smoother power and torque delivery without fuss! The system is intelligent in the way it soon adapts to your driving style and the way the vehicle is being driven so you do not get the sudden jolt you might get with other boxes under hard acceleration. I am really impressed with the overall performance of my 3-series and I think you set the benchmark for diesel tuning systems. The CHIP Express system is indeed a template for diesel performance enthusiasts. It really is that good. I rest my case!
Terry from Northampton with a BMW 3 Series F30 318d 143 said: I found the 318d was cheaper than the 320d with better spec thrown in. The car was ok to drive and lively when I needed it, but I wanted the power of the 320d. The dealer informed me the engine is the same in both models but they're just chipped differently. It got me thinking and my search started for a reputable product to fit to my one year old car. I was a bit nervous but ordered the chip on Friday and was delivered 9am Saturday morning. The photo guidance is really easy to follow and everything just clicked in. I took it for an initial drive round the block on and checked for engine lights or black smoke, but things were good. I've been on two out of town trips since the weekend and not only noticed the extra torque (car will accelerate from 40mph in sixth gear) but my MPG has gone from 52 to 61. The way the car drives has completely changed as the power range, it used to be mostly between 2000 to 3000 revs, and it now drives more like petrol cars I've had with revs going all the way to 5000 without straining. Now when I put it in sport mode it takes off like a bat out of hell! Thank you!
Allan from Kilwinning with a BMW 3 Series F30 / F31 320d 190 said: I ordered my CHIP Express yesterday and it arrived first thing this morning. Great service. I was dubious about the fitting as I know absolutely nothing about car engines and seriously considered taking it to the local garage to ask them to fit it. But on reading the other reviews I thought I’d have a look under the bonnet to see if I could have a go. I have a new BMW 320d xDrive and on following the instructions sent with the chip it took me LESS THAN 10 minutes to fit it and secure it in the pouch in the engine bay with the Velcro cable ties. The car runs perfectly and the difference is noticeable immediately. It’s an automatic and I no longer get a jerky drive off, acceleration is also smoother and faster. I would recommend this to anyone thinking of upgrading their vehicle performance. If I can fit it anyone can! Thanks CHIP Express for a great product.
Matt from Filderstadt, Germany with a BMW 3 Series E90 335d 286 said: I bought the CHIP Express diesel tuner for my BMW 335d Touring 5 months ago. The car performs flawlessly on the Autobahn here in Germany. The tires now break traction under hard acceleration if provoked, its great! I will always recommend your product. Tschüß.
Mark from Godalming with a BMW 3 Series E90 318d 143 said: Just wanted to write in to thank you for a fantastic product which increased the drivability, power and efficiency of my new BMW 3 series and gives me the same power as the next model up! A great 'plug and play' product which can be fitted and removed in a couple of minutes. I was concerned that it wasn't going to work but I shouldn't have worried. Couldn't recommend your product enough as well as your excellent customer service.
James from Annery with a BMW 3 Series E91 330d 231 said: Great product! Fitted first chip to my BMW 320d made it so better to drive no with no flat spots plus better on fuel by about 5mpg. Now fitted second chip to my BMW 330d which pulls like a train which so much more torque, very happy with service, a top company!
Mark from Godalming with a BMW 3 Series F30 320d 184 said: Had a CHIP Express chip in my BMW E90 318d 143PS for 18 months and been absolutely delighted with it. I returned the chip for an upgrade when I changed my car to a BMW F30 320D xDrive M Sport. The upgrade was done in super quick time and the installation quick and painless as usual. After about 2000 miles of driving in all conditions I'm pleased to say that the chip works even better than before! My MPG has gone up by about 12-15% and I can push about 600 miles out of a tank (up from just over 500 before the upgrade) and the difference in the acceleration in all gears (including Sport mode) is fantastic. It's a completely different car, which is now more efficient and more powerful - feeling basically like the next model up in the range! Many thanks for such a fantastic serivice and product!
Matthew from Pinner with a BMW 3 Series E90 330d 245 said: A very very good product. A noticeable difference in economy (roughly 5-10%) and you can 100% feel the additional performance. Makes a huge difference in the lower rev range reducing turbo lag. It makes driving swiftly effortless, with the added benefit of improved economy. I have had my car from new in 2011 and installed the unit almost as soon as I'd purchased it. I have had multiple services at BMW service centres over the last 5 years and removed the unit beforehand (just in case) and they have never noticed. I'm not sure if they have an issue with these kits or not, but my experience with BMW is that they'll do anything to get out of a warranty repair, so just to be on the safe side. CHIP Express on the otherhand have given absolutely amazing customer service and support. This is hugely appreciated and gives me further confidence in the product and company, I will never run a turbo diesel without one again!
Vassilis from Peristeri, Greece with a BMW 3 Series F30 316d 116 said: I purchased chip tune 6 months ago. The difference was obvious. It does what it says. I tried the same car without CHIP Express. I cannot drive without it!
Ulrik from Auckland, New Zealand with a BMW 3 Series E90 335d 286 said: Been absolutely loving your product in my BMW 335d for 80,000km. Thanks again for giving me 4 years of smiles from ear to ear and more horsepower than one knows what to do with... most of the time!
Mark from Sittingbourne with a BMW 3 Series F30 320d 184 said: After much thought and even more research I bought my first CHIP Express tuning system about 6 years ago for a new BMW X3. It was straightforward to fit and made a significant improvement to swift progress (!), smoothness and (even more impressively) economy. When I changed to an Audi I contacted CHIP Express who exchanged (professionally, quickly and at a great price) my existing unit for a new one. Same brilliant results. I'm about to return to BMW (a 2015 3-Series 320d xDrive) and have done the same again. Brilliant Company offering a product that really delivers on all that it promises. P.S. Product brilliance notwithstanding - the customer service is absolutely first class.
Koutsoudis from London with a BMW 3 Series E90 320d 163 said: A Very easy installation. Feels like I am driving another car. Great job guys and just one more word... PROFESSIONALS!
Don from Auckland, New Zealand with a BMW 3 Series G20 / G21 320d 190 said: Greetings from NZ. Just a heads up that the new chip unit that you shipped was in my mail box this morning! Have now fitted it and once again WOW WOW WOW, and as I am now onto my 3rd CHIP Express, thought I was used to the additional power and smoothness, but it never ceases to amaze me!
John from Goole with a BMW 3 Series F30 330d 258 said: I originally fitted my chip to my 325d BMW, after sending it back for re-programming it was then fitted to my BMW 330d, I found the power and fuel economy to be exceptional. I am now changing to a VW Amarok 2.0 BiTDI due to work and I have just sent it back for re-programming again. I have found the service Chip Express provide to be first class in the years I have been using their chip and have just recommended them to a work colleague, who is seriously considering fitting one to his car.
Mike from Siilinjärvi, Finland with a BMW 3 Series E90 320d 163 said: I thought about this purchase for about a year. Since fitment I'm so happy, the car is totally different in a REALLY positive way, my 4 cylinder engine now has 6-cylinder torque output, as a result the throttle response is immediate and my consumption has also dropped by 0,9l/100km, now that's impressive! Keep up the good work guys.
David from Darlington with a BMW 3 Series E90 320d 177 said: Wow, I just cannot believe the difference. It is like driving the 3lt diesel with 50mpg+. I don't know how you have managed it and it shows that for whatever reason BMW are not getting the best out this engine in std tune. Thanks very much and have recommended to all my diesel driving friends.
John from Ashton Keynes with a BMW 3 Series E90 335d 286 said: Just a quick note to say many thanks for the prompt delivery. I fitted the device this afternoon and am very pleased indeed with the results - as you said, the throttle response is much more linear and consequently the car is significantly easier to drive. My wife has just been out for a drive and is also delighted with the results, so many thanks.
Rod from Ballymena, Ireland with a BMW 3 Series E92 320d 184 said: Got chipped and so far so good. Torque is noticeably up, much more low rev pull. Economy is also up by 2-3 mpg. Auto box is now even smoother for gear changes. Hope the MPG improves even further as my driving style gets used to the less heavy acceleration now required since chipping.

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What others are saying...

“A friend recommended one of your "gadgets" a year ago and being not-very-techno (but Scottish and keen to save money!) I bought one. The gizmo has TRANSFORMED the performance of my Land Rover Freelander 2 TD4 AND improved the fuel economy by a genuine 15%; so much so that I have bought another one for our Freelander 2 SD4 which is now a REAL Q-car! (And of course saves fuel...) I have never written a review before (though strangely I do read them and take notice of them, whilst half-believing that they are written by the owner's chums!) so to have made me pick up pen & paper so to speak - I MUST be delighted! Thanks for making technology so simple and so successful!”

★★★★★

Andrew from Lochwinnoch

Land Rover Freelander (2) SD4 190

“I must say l'm delighted with the improvement from your chip, its on the standard settings and the difference in the car is amazing!!! I have a smile on my face every time I get in the car, and there is about 5-7mpg improvement. With the mileage l do, l can see myself getting my money back in no time at all. So if your a doubter like me, don't be because its one of the best things l've ever bought!!!”

★★★★★

Ian from Manchester

Audi A6 MK4 3.0 BiTDI 313

“As do many, I took the 'if it sounds too good to be true, it probably is' approach to performance chips. But CHIP Express were recommended by an impeccable source who had had experience with their product on my model of car - a Citroën C6 with the 2.7 HDi twin turbo diesel. Following a first rate response to a query, the product has delivered in spades. Ten days and more than 1000 miles of mixed town, country, low and high speed driving later I am certainly getting more than 10% more from a gallon, and probably 15%, and the performance is markedly better. Low speed response is immediate and has eradicated what I took to be baked-in lag in a big automatic turbo diesel, and mid-range acceleration is silky smooth, including up inclines. A very good car has been turned into the excellent car I had hoped for all along.”

★★★★★

Simon from Ketteringham

Citroen C6 2.7 HDi 204

“May I congratulate you on this diesel tuning product as it has made a noticeable difference to my Land Rover Discovery. I have tried other diesel tuning boxes for my previous vehicles (Kia Sorento, Peugeot 206 and Vauxhall Vectra)... and they all produced slight engine stuttering under certain load conditions. The CHIP Express system does not show any evidence of this and is equal to the likes of an ECU remap (which I have also had done before) for smoothness and noticeable power gains. This would be the only diesel tuning product I would recommend.”

★★★★★

James from Callington

Land Rover Discovery (3) 2.7 TDV6 190

“Many thanks for your fantastic service! Unit ordered Sunday, delivered Tuesday am!! Unit now fitted and, as promised, the car is transformed. Winding country lanes tackled quite happily in fifth gear. Cruising on much smaller throttle openings and immediate response on acceleration. The car behaves as a mini car should behave. I had some initial doubts about spending quite a large amount of money on this item but it is worth every penny and would not hesitate to advise anyone to do similar.”

★★★★★

Alan from Coventry

Suzuki Swift 1.3 DDIS 75

“Be assured, this is NO gimmick. Arrived yesterday (less then 24 hours after the order was placed) and fitted today. The fitting was easy especially with the photos and instructions sent with the chip. The first thing I noticed was the responsiveness of the engine from a standing start, no more lag. I then went on a 30 minute drive both motorway and sideroads and my average fuel consumption went UP from 33.3mpg to 38.7mpg. My motorway speed varied from 60 to 85mph and the sideroads from zero to 40mph. I am so pleased with the whole result. This is worth every single penny paid. Thank you!”

★★★★★

Edwin from Bridgend

Ford Kuga MK2 2.0 TDCi 163