Guide to 2.7 V6 TDI 3.0 V6 24v TDI BiTDi tuning and performance parts

"VAG V6 diesel EA897 Tuning"

This is a 6 cylinder diesel engine in V configuration. They were released around 2005 and have been revised over the years as emissions regs and market conditions required.

The 2.7 V6 TDI 3.0 V6 24v TDI BiTDi  are solid engines and offer phenomenal amounts of torque and pretty good fuel economy.

The EA897 2.7 is essentially the 3.0 with a reduced stroke. The EA897 is a six-cylinder diesel engine and was made from 2007 to 2016.

Few could see the point of owning a petrol when a diesel engine can move a car this well and still offer good fuel economy. It has been extensively revised over the years.

We examine EA897 tuning and report on the greatest modifications for your 2.7 V6 TDI 3.0 V6 24v TDI & BiTDi . VAG EA897s great bases for a tuning project and with the right motorsport mods you can substantially enhance your driving enjoyment.

History, Power & Specs of the EA897 Engine

We've tried to include production years and engine codes to help identify your unit. If we've missed anything else PLEASE let us know and we can add it.

2.7 V6 TDI CR 120-140kW

  • 161 bhp  
    Audi A4 (BSG: 11/05-06/08, CAM: 11/07-05/08, CGK: 06/08->)
    Audi A5 (CAM: 09/07-05/08, CGK: 05/08->)
    Audi A6 (BSG: 01/05-10/08, CAN: 10/08->)
  • 177 bhp@3,300-4,250 rpm; 280 lbft@1,400-3,300 rpm
    Audi A4 (BPP: 01/06-03/09)
    Audi A6 (BPP: 11/04-10/08)
  • 188 bhp  
    Audi A4 (CAM: 11/07-05/08, CGK: 06/08->)
    Audi A5 (CAM: 07/07-05/08, CGK: 05/08->)
    Audi A6 (CAN: 10/08->)

3.0 V6 24v TDI CR 150–195 kW

  • 201 bhp@3,500 rpm ; 332 lbft@1,400 rpm
    Audi B7 A4-tuning.php">A4 (BKN: 11/04-03/09)
  • 208 bhp
    Audi Q7 (BUN: 03/06-11/07)
    Volkswagen Touareg (BUN: 04/06-11/07, CAS: 11/07->)
  • 215 bhp@3,250-4,750 rpm ; 369 lbft@1,250-3,000 rpm
    Audi A6-tuning.php">A6#C7, Audi A7 (2014+)
  • 221 bhp@4,200 rpm ; 369 lbft@2,000 rpm –
    Audi C6 A6 (BMK: 04/04-05/06)
    Volkswagen Phaeton (BMK: 05/04-05/07)
    Volkswagen Touareg (BKS: 11/04-05/08, CATA: 02/09->),TDI 225-6 (BSP: 02/06->)
  • 221 bhp@4,500 rpm ; 406 lbft@1,500 rpm – 2,500 rpm
    Volkswagen Amarok (DDXC: 10/16->)
  • 229 bhp@4,000 rpm ; 369 lbft@1,750 rpm, 332 lbft between 1,400-3,250 rpm
    Audi B7 A4 (ASB: 01/06-03/09)
    Audi C6 A6 (ASB: 05/06-10/08)
    Audi D3 A8 (ASB: 01/04->)
    Audi Q7 (BUG: 03/06-05/08)
    Volkswagen Phaeton (CARA: 06/07-11/08)
  • 236 bhp@4,000 rpm ; 369 lbft@1,500–3,000 rpm
    Audi B7 A4 (CAP: 11/07-05/08)
    Audi B8 A4 (CCW: 04/08-7/11, CCL: 11/09-7/11>
    Audi Q5 (CCW: 11/08->)
    Audi Q7 (CASA: 11/07-05/10, CCMA: 11/08->)
    Porsche Cayenne (2009->),
    Audi A5 (CAP: 06/07-05/08, CCW: 03/08->)
    Audi C6 A6 (CDY: 10/08->)
    Volkswagen Phaeton (CARA: 03/07-06/07, CEXA: 06/08-05/10)
    Volkswagen Touareg (CASA/CASB/CASC: 11/07-)
  • 241 bhp@4,000-4,500 rpm; 406 lbft@1,450-3,250 rpm
    Audi A4#B8, Audi A5 (2011+)
    Audi A6#C7, Audi A7 (2010-2014)
    Volkswagen Touareg (2011+)
  • 268 bhp@3,500-4,250 rpm; 428 lbft@1,250-3,250 rpm
    Audi A6#C7, Audi A7 (2014+)

3.0 V6 24v BiTDI CR 230 kW

  • 308 bhp@3,900 - 4,500 rpm; 479 lbft@1,450 - 2,800 rpm, Audi A6, Audi A7, Audi SQ5 TDI (CVUA: pre-2014)
  • 315 bhp@3,900 - 4,500 rpm; 479 lbft@1,450 - 2,800 rpm, Audi A6, Audi A7 (CVUB: 06/2014->)
  • 322 bhp@4,000 - 4,500 rpm; 479 lbft@1,450 - 2,800 rpm, Audi A6, Audi A7 (CVUC: 06/2016->)
  • 345 bhp@3,850 - 4,500 rpm; 516 lbft@2,500 - 3,100 rpm, Audi S6, Audi S7 (CVU: 05/2019->)

Best 2.7 V6 TDI 3.0 V6 24v TDI BiTDi tuning mods

Just because a modifications is popular with EA897 owners it doesn't mean you should fit it, instead we'll ultimate modifications that will give your EA897 the biggest power gain return for your cash.

The camshaft profile plays a big part in the engines power output so camshaft upgrades make quite a large difference. The intake & exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades.

Fast road camshafts usually push up the bhp and torque through the rev range, you could sacrifice a little low down torque but the higher rpm power will be lifted.

Motorsport and race camshafts, push up the higher rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers.

On a daily driver you need to match your bhp range to your usage of the car.

You will never find a Competition camshaft is a pleasure to live with when driving in heavy traffic. The low end idle will be very lumpy and irregular, so something you would notice on a track when you drive in the upper third of the rpm band, but on roads this is a serious issue and we've heard from lots of drivers lamenting their decision to add an extreme competition cam profile to their engine.

Different EA897 engines respond better to different camshaft durations than others.

Swapping heads and cranks seems to be a popular and relatively easy way to bump up your cylinder capacity.

The ECU mapping and fuel pump and injectors also will say much on the bhp gains you'll hit.

Extending exhaust or intake durations can alter the bhp band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations.

Please watch our video which covers the 5 principles of tuning your car. Be sure to subscribe and support our new channel.

Best Engine Mods for your car

  1. Mapping - remapping provides the most advantage in terms of cost savings,  aftermarket ECUs, and piggyback ECUs are all alternatives.
  2. Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft.
  3. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction.
  4. Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. It is one of the most costly upgrades but provides the best gains.
  5. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence.

Typical stage 1 mods often include: Intake manifolds, Fast road camshaft, Sports exhaust header/manifold, drilled & smoothed airbox, Panel air filters, Remaps/piggy back ECU.

Typical stage 2 mods often include: Ported and polished head, Fast road cam, high flow fuel injectors, induction kit, fuel pump upgrades, Sports catalyst & performance exhaust.

Typical stage 3 mods often include: Crank and Piston upgrades to alter compression, Competition cam, Engine balancing & blueprinting, Twin charging conversions, Adding or Upgrading forced induction (turbo/supercharger), Internal engine upgrades (head flowing porting/bigger valves).

The EA897 engines make great tuning projects and we're happy to report there are plenty of mods and performance parts around.

A remap should help to establish the full potential of all the mods you've fitted to your EA897.

(In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it setup properly.)

It will usually give you around 30% more power on turbocharged vehicles, but you mileage will vary depending on the mods you've done and the condition of your engine.

Pulling air into each cylinder is vital to any car tuning job.

Intake manifold carry the air during the suck phase from the filter and allow it to be fed into the engine cylinders with fuel for the squish phase.

The size of bore and shape and flow rate of the Intake manifold can make a noticeable change to fuel atomisation and engine efficiency on the 2.7 V6 TDI 3.0 V6 24v TDI BiTDi

I usually find intake are in desperate need of aftermarket tuning parts, although some OEM provide well optimised intake.

Increasing the EA897 valve size, doing a bit of EA897 port enlargement and head flowing will also raise performance, this will raise potential for raising the performance increase on other parts.

2.7 V6 TDI 3.0 V6 24v TDI BiTDi (EA897) Turbo upgrades

The more air to get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes massive power gains.

NA (naturally aspirated) engines need quite a lot of work when you add a turbo, so we have a separate guide to help you take into account the pros and cons of going this route on your EA897

If your car is turbocharged, upgrades are going to net you a larger power gain and most turbo engines already contain many forged and stronger components.

There are reliable limits for every engine, with some being very over engineered and some only able to handle stock power

It is important to find these limitations and upgrade to higher quality components to handle the power.

We've seen guys spending a lots of money on turbocharger upgrades on the EA897 only to watch the engine literally blow up on it's first outing after it's been enthusiastically driven.

Bigger capacity turbo units tend to experience low end lag, and smaller turbo units spool up much more quickly but do not have the peak rpm torque gains.

  • Garrett GTD2263VZ
  • GTB2260VK VW CR240

In the last 10 years the choice of turbochargers is always developing and we commonly find variable vane turbochargers, permitting the vane angle is altered according to speed to lower lag and increase top end torque.

Twin scroll turbochargers divert the exhaust gases into 2 channels and direct these at differently profiled vanes in the turbocharger. They also boost the scavenging effect of the engine.

Stronger head bolts make sense when increasing the power on the EA897 blocks.

It is not unusual that there is a restriction in the air flow sensor (AFM/MAF/MAP) on these engines when considerably more air is being sucked into the engine.

We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor was restricting torque at a much lower level.


Don't dismiss the need improve the fuelling when you are increasing the torque - it makes the car more thirsty.  We would recommend you to over specify your flow rate on the injectors.

The accepted safe increase is to add another 20% when buying an injector, this takes into account injector deterioration and allows some spare capacity should the engine need more fuel.

Quite a few VAG Group engines share injectors with the EA897 engines.

Audi A4 / Avant

  • CGKB CAMB -163ps
  • CGKA CAMA -190ps
  • BKN -204ps
  • CCWB -211ps
  • ASB -232ps
  • CCWA CCLA -239ps
  • CAPA -240ps

Audi A4 / S4 / Avant / quattro

  • CGKB CAMB -163ps
  • CGKA CAMA -190ps
  • BKN -204ps
  • CCWB -211ps
  • ASB -232ps
  • CCWA CCLA -239ps
  • CAPA -240ps

Audi A4 / S4 Cabriolet / quattro

  • BKN -204ps
  • ASB -232ps

Audi A4 allroad quattro

  • CCWA -239ps

Audi A5 / S5 Cabriolet

  • CGKB -163ps
  • CGKA -190ps
  • CCWA -239ps

Audi A5 / S5 Coupe Sport

  • CGKB CAMB -163ps
  • CGKA CAMA -190ps
  • CCWB -211ps
  • CCWA -239ps
  • CAPA -240ps

Audi A6 / Avant

  • CAND CANB -163ps
  • CANC CANA -190ps
  • CDYB BNG -211ps
  • BMK -224ps
  • ASB -232ps
  • CDYA -239ps

Audi A6 / S6 / Avant / quattro

  • CAND CANB -163ps
  • CANC CANA -190ps
  • CDYB BNG -211ps
  • BMK -224ps
  • ASB -232ps
  • CDYA -239ps

Audi A6 allroad quattro

  • CAND -163ps
  • CANC -190ps
  • CDYB BNG -211ps
  • ASB -232ps
  • CDYC CDYA -239ps

Audi A6L

  • CANA -190ps

Audi A8

  • BNG -211ps
  • ASB -232ps
  • BMC -320ps
  • BVN -326ps
  • CDSB -351ps
  • CTEC -385ps

Audi A8 / S8 quattro

  • BNG -211ps
  • ASB -232ps
  • BMC -320ps
  • BVN -326ps
  • CDSB -351ps
  • CTEC -385ps

Audi Q5

  • CCWB -211ps
  • CCWA -239ps

Audi Q7

  • CASB BUN -211ps
  • CATA -224ps
  • BUG -232ps
  • CCMA -239ps
  • CASA -240ps
  • BTR -326ps

VW Touareg

  • CASD -204ps
  • CASB -211ps
  • BUN -211ps
  • CATA -224ps
  • BKS -225ps
  • CASC -239ps
  • CASA -240ps
  • CKDA -340ps

2.7 V6 TDI 3.0 V6 24v TDI BiTDi EA897 Exhaust

You may need to replace your exhaust if your current exhaust is creating a flow problem.

On most factory exhausts you'll find the flow rate is still ok even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust.

Sports exhausts can usually air flow from the engine but avoid an exhaust that is too big or you might just stuff your flow rate and make things worse. So generally speaking, keep to a size of 1.5 to 2.5 inches for best results.

Common exhaust restrictions are in the emissions filters installed, so adding a freer flowing race alternative such as a sports catalyst pretty much removes this restriction, thanks to it's larger size and surface area, and will effectively raise the performance to levels you would expect without having a catalyst installed, but keeps the car road legal.

Weak spots Issues & problem areas on the 2.7 V6 TDI 3.0 V6 24v TDI BiTDi

The EA897 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. Few problems should happen as long as they are regularly serviced and maintained.

Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. We have tips on removing carbon build up.

Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to this engines design, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue.

Regular oil changes are vital on the EA897, especially when tuned and will help extend the life and reliability of the engine.

If you would like to know more, or just get some friendly advice on Tuning your VAG engine please join us in our friendly forum where you can discuss EA897 tuning options in more detail with our EA897 owners. It would also be worth reading our unbiased VAG tuning articles to get a full grasp of the benefits and drawbacks of each modification.

Please help us improve these tips by sending us your feedback in the comments box below.

We love to hear what our visitors have got up to and which upgrades work best for you on your car. Which helps us keep our guides and tips up to date helping others with their modified car projects. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these articles which are kept updated and constantly revised.

If you've enjoyed this page we would be very grateful if you could share a link to it on your favourite forums or on your social media profiles, it helps us keep going.

Please Check out my YouTube channel, we're regularly adding new content...

PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. To keep us running PLEASE Donate here

If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile.

Feedback - What do You Think?

Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine.

Help us improve, leave a suggestion or tip

Your Constructive comments on this article, I really want to improve this article with your help and suggestions.

Please watch this video and subscribe to my YouTube channel.

Member Benefits

Join our forum today and benefit from over 300,000 posts on tuning styling and friendly car banter.

You will also have full access to the modifed car gallery, project car updates and exclusive member only areas.

(All car owners of all ages and from all countries are welcome).

BMW 335i - 2021 COTY

We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide

Tips for N54 Tuning

Tips for N55 Tuning

Popular articles

Tuning diesels
Remapping ECU
double de clutch
Induction Kits
Customize a car
Chipping cars
Modified car insurance
Track day insurance
Diesel Remaps
MPG calc
DPF unblocking tips
Forza 5 tuning guide

Suspension Settings

Suspension setup and suspension settings and fine tuning.

Car Lightening

Weight reduction and lightening a car to increase performance.

Spray Art

Spray art on cars from shows

Car Styles

Definitions of car styling looks

Best Cheap Cars To Modify

Best cheap cars to modify

Tunable Car

The most tunable car has to be the Audi A3 1.8T and the Toyota supra.

MPG Calculator

MPG calculator UK miles per Gallon – calculate MPG