Bulletins & Advisories Introduction to the 7th Generation Accord (with 6th Generation Comparison)

Discussion in '7th Generation (2003-2008) [Acura TSX]' started by Ichiban, Sunday 6th Nov, 2011.

  1. Ichiban Founder Staff Team

    England CJ Leeds
    With the launch of the 7th gen Accord, Honda did successfully establish the arrival of another unique Accord based on the Honda philosophy. Honda this time had the Accord featuring numerous technological innovations that maximize comfort and handling, and provide high levels of safety, durability and efficiency. This Accord was not intended as a direct replacement for the 6th gen Accord, but when looked at the new style it’s clean flowing silhouette , the new cars profiled itself in the upper level of the mid class cars. When it was launched in 2003 this car intended positioning in the Honda stable would be situated between the 6th gen and then Legend. A clear indication Honda wanted to break the mould, leave the D segment and attempt to get the premium segment in its sights.

    In 2003 the 7th Generation Accord was strongly positioned in the D-segment, a market where there’s a lot of competition and where Honda did not want to compete anymore. The 7th gen therefore was not be launched in 5-door version, and engines under 2 litre were abandoned. This was done especially for the critical and demanding driver in the executive segment. The 7th Accord is bigger in size and coupled with three strong engines options which were more powerful than the outgoing Accord gave the Accord brand the depth and variety it so long craved for. With the demise of the Accord Type-R , Honda wanted to launch a diesel option to meet the ever demanding crave for diesel cars whilst maintaining its presence of the Honda badge in the executive car park. Noticeably the finishing quality and equipment were obviously of a higher level, this is projected in the price. The new 7th Generation Accord also showed a more distinct price/quality ratio compared to the competition in 2002. This also signalled a departure from manufacturing the European Accord from Swindon to Japan.


    New Features compared to the 6th Generation Accord
    • Engine: A 2.4l petrol engine was introduced, with the same characteristics as the 2.0l engine, and all-new developed diesel 2.2 which saw a return for the second time in an accord. The first accord to have a diesel engine was the 5th gen in 1995, this time the engine was completely designed internally by Honda.
    • Dual zone air conditioning: with climate control
    • Rewritable ECU: The 7th Accord is the first European Honda car which had a rewritable ECU.
    • Rain sensor: The 7th gen Accord is equipped with a rain drop detection wiper function which will control the wiper timing depending on drop amount.
    • B-Can/F-Can :The body communication is an enhanced multiplex system with B-Car and F·Can
    • Roof side Airbag : As an extra security device
    • Touchscreen Navi : This new unit features various control s like Aircon diagnosis and DTC readout .
    • 6 speed MT 6 speed gearbox on the 2.4
    • In key integrated transmitter: For weight reasons and ergonomics the transmitter and key are one unit
    • Multi CD changer: The CD system up to 6 CD’s
    Interior and Exterior Dimensions

    6th Generation7th Generation
    Wheel Base2668mm2680mm
    Front Treads1495mm1515mm
    Rear Treads1504mm1525mm
    Accord Frontend Dimensions


    Accord Saloon Interior Dimensions


    Accord Tourer Interior Dimensions

    accord-cm2-design-top. accord-cm2-design.

    Engine Performance Comparison

    The new K24A3 engine in the 7th Generation Accord vs. the previous 6th Generation F23A.

    The new K20A6 engine versus the previous F20B.

    The 7th gen Accord is fitted with either a 2.0 or 2.4 litre engine with increased power and torque with lower emissions and superior fuel economy compared with the previous 2.0 and 2.3 litre engines on the 6th gen respectively. The engine is basically an S 2000 NP2 engine which was altered for the Stream and later for the CR-V. Many improvements have been made to achieve an even more efficient engine. These 2 rocker arm (intake camshaft) DOHC i- VTEC engines are equipped with new technological developments such as One-way Cooling Circuit System, and emission regulations (EU2005). The 2.0l engine has VTEC on the intake side, and the 2.4 I has VTEC on both intake and exhaust camshaft.

    Both petrol engines used a plate in the cylinder block to ensure proper guidance of coolant which gave birth of the one way cooling circuit system. This new cooling circuit gave the engine increase torque at low/mid speeds by revisions and improvements made in knock characteristics. · The head gasket water holes are modified to help with coolant circulation and also increase the quantity of coolant within the head. The increased flow inside the head combined with the improved cooling around the intake port reduced engine knock allowing ignition timing to be advanced 4° resulting in a torque increase of 2.9Ib-ft (0.4kgfm) at 2000 RPM.

    ivtec-i-vtec-vtc-setup-diagram. cam-angle-advance-low-load. ivtec-valve-timing-delay.
    i-VTEC, VTC couple with a VTC Solenoid on the Intake Camshaft.

    Other New Engine Features:
    • The intake moves to front of the engine with exhaust on the rear of the engine, preventing the heat soak seen on previous Accord’s under the engine sump.
    • A silent cam chain.
    • The engine block was resigned as a block and bed plate design ensuring superb bottom end structural rigidity.
    • A balancer shaft unit within the oil pan to remove engine vibration.
    • Oil cooler seen on the 2.4 to keep oil temperatures down
    Engine Mounts, Subframe:

    The 7th gen Accord featured revised engine mount technology to further improve the noise and vibration characteristics and which resulted in superior driving performance.. Handling stability was greatly increased by Honda engineers relocating the support mount to be above the engine and transmission’s centre of gravity. Honda introduced newly developed components such as rigid aluminium mounting brackets with a fully floating construction, which dampens even more effectively both engine and road surface noise and vibration.
    The mounts were designed in such a manner in an event of a collision the engine can slide under the car.

    Rear Subframe:

    The new Accord’s rear subframe assembly is revised from the 6th Accord and features increased rigidity. Honda redesigned the cross member and support to be more rigid which improved rear suspension responsiveness. The result is a highly tuned chassis with advanced controls and excellent performance.


    The 7th Accord incorporates several changes to the suspension in order to improve driving characteristics and control. High speed stability and low speed cornering are simultaneously realised from the design changes. All versions are equipped with the same suspension, meaning a double wishbone suspension in the front and a multilink 5-link suspension in the rear (saloons).

    The change points from the 6th gen Accord are:
    • Increased tire size.
    • Optimized suspension geometry for performance improvement (both front and rear)

    Front Suspension:

    For optimized geometry 01 the front suspension, an A arm replaces the lower arm from the
    previous design, and a large compliance bushing is also seen A steering angle stopper is incorporated to the knuckle arm and damper fork
    .Multilink rear suspension which features designed control arms

    More noticeably was the An aluminium knuckle construction is adopted, increasing rigidity and contributing to the reduction in non-suspended weight by 30%, which provides improved riding comfort. The 6th gen Accord features a steel hub whilst the 7th gen had all new aluminium hub featuring a complete bearing hub assembly which is a direct bolt on.

    Body Construction, Body Rigidity:

    The 7th Accord has gained more of dynamic and planted chassis from improvements made in body design changes The increased body rigidity features a lightweight and well balanced chassis which delivers superior collision safety and performance. Static rigidity is realized around the trunk and door constructions contributing to quieter operation. Reinforcements in the front section on, rear pillar and rear frame area are optimized contributing to overall body stiffness and collision absorption. As a result of these innovations, the balance between front and rear is optimized and driving stability is increased. Most importantly according to Honda engineers the 7tH Gen accord has a coefficient of drag 0,26, whereas the first gen Insight with its Cd 0,25 is the World’s lowest of all serial produced passenger cars (based in 2002)


    The new side view mirror housing shape was designed to reduce wind noise caused by wind resistance. Exiting wind speed is reduced from the wider rear section construction, which results in a high wave noise reduction. The redesigned windscreen wiper arms also contribute to aerodynamics by being installed to their maximum lowest position in order to avoid wind current, and by doing so wind noise is subsequently reduced.

    Improvement in body quality:
    • Redesigned wiper arm
    • One piece trim moulding
    • Newly designed door sash
    • Reduced bumper seam margin
    • Reduced door handle seam margin
    • The rear bumper incorporates a lower profile and hangs further down to cover more of the underside and exhaust. This was one of area Honda received a lot of feedback, owners wanted a cleaner and aesthetically pleasing look.
    • Splash guards inside the wheel housing and a rear inner fender were added to stop the dreaded arch rot and effects of road salt on the sills.
    • Organ Type Accelerator Pedal
    The adoption of an organ type accelerator pedal provided a more linear stepping load, increasing the contact area whilst reducing driver fatigue. This gave the reduction in contact deviation throughout the pedal stroke, which gave a supportive and light pedal feel.
    Last edited by a moderator: Saturday 13th Dec, 2014
  2. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
    Images recovered and reformatted.

    A good read folks for a comparison between the sixth and seventh generations, @Chunkylover53 - you might like this.
  3. Chunkylover53 Expert Advisor ★ ★ ★ ★ ★

    Cheers for the tag @DeviateDefiant

    Few points that drew my attention
    Maybe I'm reading in between the lines here but basically to improve the finishing quality and include higher quality equipment to improve the price/quality ratio, production had to be moved to Japan.

    Good to see its bigger, 5th Generation was bigger than 6th Generation too IIRC

    Wish that was the case for the 6th Generation

    Did not know that, adding to the fact that the 7th Generation looks good means they hit two birds with one stone. I presume they tried the same method with the Civic Tourer, shame that didn't go to plan...

    Another wish, hopefully I can change my pedal to organ type.

    Good move, those two areas are very prone to rust on the 6th Generation.
  4. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
    I think economics came into play here, cheaper to commission one factory in Japan to cater to Asia, Europe and the Middle East, considering we now shared a common model with Japan again (JDM 6th Generation was a different model).

    I think that's because they decided Europe liked smaller cars with the 6th Generation, and we had our own model, both the USDM and JDM were a lot bigger.

    My '03 has been sat for over 10 months now, it's just starting to show some very minor arch rust.
  5. Ichiban Founder Staff Team

    England CJ Leeds
    Incorrect the plant in question (Sayama, Saitama) wan't commissioned to make the 7th Generation it was already built way back in May 1964. Since the development and research was entirely handled by Japan. The only economic factor was the yen favourable to the USD so Japan was the choice. TBH Japan wanted to take control of the D segment again and the diesel development could not have been achieved in Europe.
  6. exec Premium Member Club Supporter

    United Kingdom London
    So the 7th Generation did not come with all round double wishbone suspension afterall! That explains why there is no camber adjuster as standard on them, whereas 6th Generation had them.
  7. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
    The front is double wishbone and the rear is a multi-link set-up (4 arms total).