Introduction

In France a company called Ceji released several Diaclone and Microman toys, both under the name Diaclone (which has nothing to do with the Japanese Diaclone). Each of the toys came with a small comic. Apparently in France the robots were living beings, whereas the Japanese Diaclones were mecha, controlled by humans or aliens. Just like in Transformers, except that the some of the bad guys in Transformers were the good guys and vice versa.

Comic/catalog scans

Below are scans of the comics that came with the toys, plus translations (Chapter I scanned by Lars Erikson, Chapters VI, VII and VIII by Lionel), translations by Jérôme WICKY).
 

Cover and back cover
DIACLONE.
Duel in Diaclona.
Story & Art by Paul & Gaëtan BRIZZI.
(The Cover and Back cover are always the same in every chapter. Even the title "Duel on Diaclona never changes even though the inside story is different in each chapter)
Caption 1: DIACLONE, liberator of DIACLONA city, chased away MULTIFORCE 14, who dreams 
                of vengeance and reconquest. Will DIACLONE be able to defend his city?
Caption 2: DIACLONE, leader of DIACLONA. To defeat his enemy he can transform himself into a 
                 truck and his trailer is a multi-purpose military base.
Caption 3: MULTIFORCE 14: the former tyrant wants to reconquest the city he once commanded. To 
                 fool his enemies at best, he turns into 14 vehicles composing his own flight.
Chapter I : SURPRISE ATTACK
Caption 1 : In Diaclona, today is a feastday. All the vehicles are parading to celebrate the first anniversary 
                  of the liberation of the Great City.
Caption 1 : But on the horizon, one can see the sky getting dark...
Caption 2 : This is the flight of MULTIFORCE 14, the tyrant who formerly reigned on DIACLONA and 
                  had forbidden vehicles to move freely. Led by DIACLONE, they revolted. After a memorable 
                  battle, Multiforce 14 was overthrown. One year has passed during which the dethroned tyrant 
                  could reform a new flight...
Caption 3 : ...which is surging through Diaclona!
Head ship : "Objective in sight. Sustained fire!!"
Porsche 935 ("Jazz") : "The Multiforce!! No need for killjoy here!"
Porsche 935 : "I, too, have a surprise."
Porsche 935 : "Come closer..."
(Note: The third image is the same as on the "Porsche 935" French Diaclone toy box)
Porsche 935 : "I just hate drags like you..."
Ligier ("Mirage") : "I got spotted by these three; it's up to me!"
Ligier : "Let's have a spin round and a structural changing..."
(Note: The third image is the same as on the "Ligier" toy box)
Ligier : "They're taking flight... We should suggest Diaclone to call a meeting of the Great Council, in 
             order to counter this attack."
Chapter II and III
Missing. If anyone has them, please send scans!
Chapter IV : REPRISALS
no scans 
available
Caption 1 : It's total war between DIACLONE and MULTIFORCE 14 for supremacy on the city. 
                  Diaclone reorganizes his strategy. 
Caption 2 : All information is sent to the COSMOCAR who analyses them. He transmits the results to 
                  DIACLONE who decides what is to be done. 
Cosmocar : "Multiforce 14's three lackeys who attacked JAGUAR mustn't be too far from here..."
Caption 3 : The three ATTACK-CARS are immediately sent on mission to annihilate the three perfidious 
                  ones: ARAGON, ZETAR et CROMAR. 
Zetar : "Multiforce 14 will be furious, this goddamn Jaguar escaped me!"
Turbo 2000 : "Here comes fat ZETAR! Let's settle him..."
  Caption 1 : Turbo swipes by like a whirlwind and transforms!!!
Caption 2 : Helpless, Zetar disappears under a rock avalanche, with a deafening noise.
  Caption : Meanwhile, on the other side of the hill, ARAGON is on his way to face the other Attack-Car. 
Van : "Here comes Aragon, this treacherous rogue!"
Aragon : "My fender will break him in two!"
Van : "...now!!"
  Caption 1 : Witnessing his accomplices' failure, CROMAR operates a structural changing and escapes.
Caption 2 : Just as he's getting off the ground, Cromar see the third Attack-Car suddenly appearing.
Cheetah : "Mission accomplished!"
Chapter V : FIGHT IN THE DUNES
no scans
available
Caption 1 : It's total war between DIACLONE and MULTIFORCE 14 for supremacy on the city. 
                  Diaclone reorganizes his strategy. 
Caption 2 : Multiforce 14 is fulminating at his video screens, as his three loyal lackeys have just been 
                  destroyed by Diaclone's Attack-Cars. 
Cosmocar : "COSMOCAR to DIACLONE... The raid was successful. The analysis of the last received 
                    information will give us the ability to better localize the enemy's hideout."
  Caption : But Multiforce 14 intercepts the message. Cosmocar immediately becomes his priority target. 
               Tanks and vehicles leave Multiforce's fortress to stop him.
Cosmocar : "Cosmocar to Diaclona Headquarters... Do you read me? Multiforce
                    14's tanks are attacking me... SOS... SOS..."
Someone at the H.Q.: "I read you loud and clear!!! Diatrain is leaving the base at once..."
  Caption : On the terrain battlefield, Cosmocar's situation becomes more and more critical...
Diatrain : "DIATRAIN to COSMOCAR. Hang on, I'm taking care of these guys!"
  Diatrain : "That will be done in a few seconds..."
Cosmocar : "Phew!! Thanks, old pal!!"
Chapter VI: FIRE IN SPACE
Caption 1 : DIACLONE's forces are droning to and fro across the region in which Multiforce 14 and his 
                  troops are supposed to hide. Then, F-15 notices a massive outline.
F-15 : "It may be worth a detour..."
F-15 : "That's the cursed fortress!!"
Caption 2 : Through F-15's cockpit, CAMERA-ROBOT immediately takes precious photos. But all this 
                  little game can't escape the enemy's radars and soon the Red Alert is sounding...
F-15 : "They're following me!!"

Caption : Surrounded on all sides, F-15 tries to get out of his fearsome pursuers' sustained fire, by all the 
               power of his jet engines...

A Multiforce Plane : "Got him!! He's gonna crash!!"
Caption : Through a skillful pull-up, F-15 avoids disaster.
Camera Robot : "Go hide in those caves. We'll cover you!"
F-15 : "I still have enough energy and resources to astonish those bastards..."
Camera Robots Leader : "Let's go guys!!"
One of the Camera Robots : "What do you think of it, huh?"
Caption : CAMERA-ROBOT has splitted into three powerful and over-armed warriors. They fiercely 
               fight to cover F-15's retreat.
Red Camera Warrior : "They're taking flight!"
Another Camera Warrior : "Still, we'd better stay under cover and ask the H.Q. for some help. F-15's 
                                          got one hell of a wound."
Chapter VII : SAVAGE ROADS
Caption 1 : In Diaclona, Cosmocar receives Camera-Robot's alarmist report after the tremendous aerial 
                  combat.
Camera-Robot (through Cosmocar's radio) : "F-15 wounded... asking for assistance... Here is our 
                                                                      position..."
Caption 2 : An ambulance is immediately dispatched...
Ambulance : "Through the Savage Road I'll make it faster."
Ambulance : "Brr! What a scary place..."
Trans-Am : "Hurrah!!"
Trans-Am : "Okay, let's get out of here!"
Cosmocar : "What, those pillagers again?!!!!"
Cosmocar : "Now you'll never bother us again..."
Cosmocar : "Quick! I hope it ain't too late!.."
Caption 1 : Thanks to his efficient multi-functions equipment, Ambulance gets out of the swamp all by himself.
Caption 2 : Cosmocar and Ambulance quickly rejoin Camera-Robot and F-15.
Camera Robot Leader : "Now that Ambulance is nursing F-15, let me tell you about our little
                                      discovery, without no more delay."
Caption 3 : Inside Cosmocar, Camera-Robot projects the photos revealing the position of the redoutable 
                  Enemy fortress. 
(Camera-Robot seems also to be a Slide-Projector-Robot!!)
Caption 4 : Thanks to this priceless information, a definite attack plan is recorded on a special tape to be 
                  communicated to everyone without any further delay.
Chapter VIII : THE TRAITOR
Caption 1 : The conflict between Diaclone's and Multiforce 14's forces is entering its final stage. A general 
                  Attack plan was recorded on a tape which will be transmitted to all of Diaclone's fighters.
Caption 2 : There's a traitor in the ranks of DIACLONE's army: ROBOT-COLT is in fact a spy from 
                  Multiforce 14's troops. He managed to enter Cosmocar's Controls room. Without anybody 
                  knowing, he heard each detail of the secret operation, and as night comes, he seizes the precious 
                  tape. 
Robot-Colt : "Multiforce 14 will appreciate this service..."
Caption : Nevertheless, aboard Cosmocar, the Diaclona warriors quickly become aware of the 
               disappearance of the tape. Robot-Colt's absence makes his guilt obvious. Immediately, Turbo 
               2000 goes in pursuit of the traitor...
Robot-Colt : "Damn! Someone's chasing after me..."
Robot-Colt : "Quick, let's get this in a safe place, while I get rid of this pain in the neck!"
Robot-Colt : "A living tape!!"
Turbo 2000 : "Phew! CONDOR managed to sneak away from him!"
Robot-Colt : "HaHaHa!! Condor may have escaped from me, but this one won't bother me no more."
Condor : "Die, you traitor scum!!!"
Caption : The footbridge on which Robot-Colt was standing is pulverized, thus making him fall to an 
               unavoidable death. 
Condor : "'got no time to waste! Gotta rejoin Diaclone..."
Toyota : "Here comes Condor with new information.
Chapter IX: HOSTILE SHADOWS
no scans
available
Caption 1 : MULTIFORCE 14's hideout has been located. All the vehicles converge on it, after the 
                  example of DIACLONE, following TOYOTA.
Caption 2 : But Diaclone is too heavy, gets stuck in the sand, and is quickly immobilized.
Diaclone :  "Only DIATRAIN can save me... SOS... SOS..."
Diatrain : "I'm reading you loud and clear..."
  Caption 1 : Soon, menacing shadows appear and worry DIACLONE.
Caption 2 : In order to slow down their coming, a DUNE-BUGGY is catapulted.
Dune-Buggy : "Let's play Skittles!"
  Toyota : "It's time to operate... my structural changing."
Caption : TOYOTA too pitches into the fight, but the enemy still approaches dangerously. 
(Note: The third image is the same as on the "Toyota" toy box) 
Toyota : "If DIATRAIN doesn't arrive soon, I won't be able to hold them back a long time..."
  Diatrain : "Looks like I'm needed there..."
Toyota : "We managed to intimidate them. They're beating the retreat. But... for how long?"
Caption : DIATRAIN soon digs DIACLONE out of the sand. 
Toyota : "Here they are again, more numerous than ever."
Chapter X: FIGHT OF THE TITANS
no scans
available
Caption : Diaclone and his friends prepare to fight against terrible creatures Multiforce 14 sent to stop them.
Diaclone or Toyota : "Well, these two won't come any closer!"
  Caption 1 : Cut at the waist, the WALDALOS turns his lower part into an hideous monster...
Caption 2 : ...who creeps stealthily up to Toyota.
Toyota : "Ahhh, curse you, monster!"
Toyota : "Here! Have some insecticide, you rotten cockroach!"
  Caption 1 : Merciless, Diaclone then annihilates MICRORIDER.
Caption 2 : Multiforce 14 finally appears, at the head of his flight.
(Seems like Multiforce 14 and his flight are not one and the same, finally. Kinda strange... Maybe there's 
 several Multiforces?)
Multiforce 14 : "Dispose of them all!!"
  Diaclone : "Cheer up, guys! Victory is ours!"
Caption : In a tremendous state of chaos, all DIACLONA forces suddenly appeared to definitely bring down 
               the enemy.
Diaclone : "Good-bye, Multiforce!!!"
Diaclone : "My friends, keep on living in peace. The big city remains untouched. The big city will 
                  forever be free..."

THE END
(Or... to be continued?) 

Catalog
Top: Toyota (Trailbreaker), Ambulance (Ratchet), Diaclone (Optimus Prime), Ligier (Mirage) and 
        Porche 935 (Jazz).
Bottom: Trans-Am (Windcharger), Truck (Huffer), Pickup (Gears), Cheetah (Brawn), Aragon 
             (Powerdasher car), Cromar (Powerdasher jet).
(Notice that there are some errors in the list.)
Top: Zetar (Powerdasher drill), Jaguar (Ravage), Condor (Laserbeak), F-15 (Starscream), Multiforce-14 
        (Diaclone Gats Blocker), Camera Robot (Reflector), Robocolt (Browning).
Bottom: Cosmo Roller, Diatrain, Kronoform (Microman MC-06 Watchrobo), Van (Diaclone Onebox), 
             Cheetah (Diaclone Lamborgini Cheetah), Turbo 2000 (Diaclone Stallion).