Ross Brawn revealed on Wednesday he missed the recent Spanish grand prix to have checks on his heart.

After handing over to his Mercedes deputy Nick Fry in Barcelona, fellow Briton Brawn is back in action as the team boss in Monte Carlo.

Rumours hinted there was more to the story, but Brawn insisted to a German newspaper earlier on Wednesday that he was simply advised by doctors to take the weekend off after a night in hospital for checks.

He then told reporters in Monaco his symptoms had been “arrhythmia”, or an irregular heartbeat, insisting he is “back to normal now”.

Brawn, 57, joked the heart problem was triggered by watching an exciting football game on television.

Ross Brawn should be firing on all cylinders as he returns to the pitwall in Monaco this weekend.

Mercedes’ team principal sat out the recent Spanish grand prix due to illness, but a scarcity of extra information triggered speculation.

One rumour was that he is seriously ill, whilst another was that his absence may in fact be due to his German employer’s high-stakes spat with Bernie Ecclestone.

The latter theory gained traction since Barcelona, with acting team boss Nick Fry taking a much higher than usual profile, including naming Paul di Resta as a possible 2013 successor for Michael Schumacher.

Explaining his absence, Brawn told Bild newspaper: “On the Tuesday before Barcelona I felt unwell so I went to the doctor and then stayed a night in hospital for some tests.

“When I got home, I decided on the advice of doctors to give myself a weekend off, to be sure that I am fit for Monaco,” the Briton said.

Partly because of Brawn’s deputy Fry’s recent comments, and also due to his paltry points tally and his crash with Bruno Senna, rumours about Schumacher’s future have intensified since Spain.

“A lot has been said and written,” acknowledged Brawn, “but we should not forget that we – the team – have let him down in three of the fives races, not delivering the job we should have.

“We must do better,” Brawn, who worked closely with Schumacher during the seven time world champion’s ultra successful Ferrari era, added.

“We saw Michael’s real quality again in the first race, so it’s for that reason that I believe we will see him on the podium this year.”

As for a possible contract extension for the 43-year-old, Brawn insisted: “When the time comes, we will sit down together and talk about the future.

“I’m sure it will become clear very quickly in what direction we will go.”

A lack of official information has triggered speculation about Ross Brawn’s health.

And another rumour is that his absence in Barcelona could be connected with Mercedes’ billion-dollar dispute with Bernie Ecclestone over the next Concorde Agreement.

The German squad announced on Thursday that Bob Bell is leading the team in Barcelona because regular boss Brawn is back in Britain on doctor’s orders.

Bild newspaper said the 57-year-old was given the advice in hospital earlier this week, following a dizzy spell at his home in England.

“It’s more than the flu,” chief executive Nick Fry is quoted as saying, “but I can assure you that it’s nothing life threatening.”

Indeed, a spokeswoman told us on Thursday that Brawn will be back to work at Monaco in a fortnight.

For Spain, Brawn will watch the action on television.

“We will still keep in touch,” Michael Schumacher revealed. “Ross cannot be replaced. That’s simply impossible.”

Getting the setup right is a challenge teams are grappling with in 2012.

So far this season, four different cars have won the four grands prix, with Pirelli’s difficult tyres credited or blamed for the unbalance of power.

The key, according to Mercedes team boss Ross Brawn, is car setup.

“We can’t modify the setup between qualifying on Saturday and the race on Sunday,” he is quoted by Brazil’s O Estado de S.Paulo newspaper. “And they are very different challenges, especially with this year’s tyres.

“It’s one thing to get the car to be fast on one lap and quite another to make it fast and consistent over 70.

“Whoever can anticipate what will be required for the race and come to a compromise – maybe to the detriment of grid position – should have a decisive advantage in the race.

“But it’s not easy to anticipate what happens on Sunday,” insisted Brawn.

An obvious tension was evident at Mugello when Pirelli’s Paul Hembery was asked about Michael Schumacher.

The seven time world champion had slammed F1′s official supplier after Bahrain, arguing that the 2012 tyres degrade so quickly it makes driving a grand prix car as slow as a safety car.

“We haven’t spoken,” Briton Hembery is quoted by Germany’s Auto Motor und Sport. “I’ve just read something on the net about the tyres from his teammate Nico Rosberg which is very different.”

Asked if Schumacher’s criticism was irritating, he answered: “We built the tyres the way we were asked to.

“The FIA, Bernie Ecclestone, even the teams wanted it this way. The spokesman for the teams at the time was Ross Brawn, Schumacher’s team boss.

“There have been four different winners in the four races so far, which alone shows that we must have done something right,” Hembery insisted. “As a fan I would be thrilled.”

Asked if he can at least understand Schumacher’s frustration, he continued: “The four winners this year have not won by chance.

“They were absolutely the best drivers in those races and all of them were faster than their teammates.

“I can understand that Michael was frustrated at the last race. Among the four winners so far were two Germans, and then you had Kimi (Raikkonen), who in the fourth race of his comeback is on the podium.

“Racers are winners; they’re not happy unless they’re winning.”

Hembery denied that tyres have, in 2012, become more important than the cars or drivers.

“That’s a misconception,” he insisted. “The driver has a huge impact.

“Anyway I’m convinced that at Silverstone at the latest the teams will have the problem under control. Just as they did last year.”

Finally, he insisted that Pirelli is not going to make any knee-jerk reactions.

“If there are 23 drivers satisfied and only one dissatisfied, then I don’t think we need to change something,” Hembery is quoted by Bild newspaper.

Ferrari’s Fernando Alonso, however, acknowledged a slight frustration.

“For the top teams it’s a bit frustrating,” he told La Stampa newspaper, “when it’s difficult to exploit all your potential.

“It’s like Real Madrid, Barcelona and AC Milan suddenly playing with the budget of Cesena.”

F1′s new face of 2012 is polarising the sport.

It seems teams, drivers and spectators alike either love or hate the new great influence brought largely by Pirelli’s new generation of tyres.

An admitted critic is Michael Schumacher.

“It’s a 1000 piece puzzle that you need to put together at each race,” said the seven time world champion, according to Auto Motor und Sport.

Not for three decades have four different drivers driving for four different teams won the opening four grands prix of a season.

“From the standpoint of competition,” wrote Livio Oricchio in O Estado de S.Paulo newspaper, “there is no doubt that the Pirelli 2012 generation meets fully the objective of promoting the show.

“But if you think purely about the engineering challenge that is formula one, and the genius of the people and the immense financial and technical resources needed for success, the tyres have now taken on such an importance that the results don’t seem compatible.

“Myself, and many in formula one, hope the new versions of tyres that Pirelli is developing returns a little more predictability in terms of how they behave, without affecting the show too much.”

For now, however, the teams need to put their puzzles together, and that will undoubtedly be the focus of this week’s three-day in-season test at Mugello.

“He who understands the tyres first,” McLaren team principal Martin Whitmarsh astutely noted, “will have a huge advantage in the world championship.”

A broad understanding is already developing, including why 2012 winners Jenson Button, Fernando Alonso, Nico Rosberg and Sebastian Vettel won from the very front of the field.

“When you’re in a battle, you can’t take the lines that are best for the tyres,” said Mercedes’ Ross Brawn.

All eyes are now turning to Mugello, where the understanding will continue.

“These test days could change the balance of power in formula one,” Norbert Haug predicted dramatically in Bild newspaper.

Not everyone is enthusiastic, however, including McLaren who oppose the Mugello test on cost grounds.

Williams’ chief engineer Mark Gillan agrees: “The days of test teams are gone, so this is not logistically easy,” he is quoted by Germany’s Sport1.

Bruno Senna added: “Mugello is not an ideal test track, as it’s very different to most of the tracks that are on the calendar.”

A spat between two Britons could drive the German giant Mercedes out of formula one, according to a new media report.

F1 chief executive Bernie Ecclestone recently confirmed he is at loggerheads with Mercedes over the next Concorde Agreement.

But at the same time, he insisted that the Stuttgart marque is “very important to formula one. I have always supported them and I will always,” he is quoted by Auto Motor und Sport.

Indeed, Mercedes has its own and newly-winning works team, powers the marquee McLaren outfit, and also supplies engines to Force India.

Ecclestone’s dispute is with fellow Englishman Ross Brawn, who is the Brackley based Mercedes GP team’s principal.

“I have spoken to the team manager (Brawn) about it (the dispute) and he seems to believe that the team has won a few world titles and about 80 races since the Tyrrell days,” said the 81-year-old.

Sport Bild reports that Ecclestone is refusing to give in to Brawn’s demands for extra Concorde Agreement entitlements for past title successes and history.

The magazine said the relationship has become so intense that Ecclestone has even refused to give a joint interview with Brawn.

“He (Brawn) was never very nice to me,” the F1 ‘supremo’ is quoted as saying.

The German report said there is a risk Mercedes will, as a result of the ‘ice age’ between the British duo, pull the plug on its entire F1 involvement.

McLaren is not yet ready to roll out a Mercedes-style ‘F-duct’ to complement its highly competitive 2012 car.

Despite Mercedes struggling with tyres in the actual races so far, the W03 is a standout qualifying performer, thanks in part to the so-nicknamed front and rear ‘super-DRS’ system.

Red Bull, Lotus and perhaps even Ferrari are threatening to protest, but until now McLaren – with arguably the dominant package of the 2012 season so far – has stayed out of the argument.

“We don’t have a strong view one way or the other,” technical director Paddy Lowe confirmed during the regular Vodafone media teleconference on Tuesday.

The F-duct will remain a hot topic in China this weekend, with Lotus’ technical boss James Allison believed to be armed with two new arguments against its legality.

It was thought McLaren was quite advanced with its own version of the system.

But Lowe revealed: “Until we’ve got clarity it’s difficult for us to commit a huge about of effort in that direction. So that’s where we are at the moment.”

He steered away from suggestions Mercedes, including boss Ross Brawn, have flouted the “spirit” of the recent F-duct ban.

“There’s no such thing as the spirit of the rules,” insisted Lowe, admitting that if there was a ‘spirit’ of the DRS rule, the Mercedes system is “definitely” in breach.

“The debate around whether they can keep that system on the car is not about whether it is in that spirit or not, it’s about whether the text of the regulations means they can’t,” he explained.

There are still some “gentlemen” in F1, team boss and owner Peter Sauber insists.

Amid the recent F-duct debate, it was suggested that Mercedes’ Ross Brawn had broken a teams’ ‘gentlemen’s agreement’ that the technology should not be pursued.

“I think you need gentlemen in formula one for this” Sport Bild reporter Ralf Bach jibed sarcastically during a news conference recently.

But Sauber, arguably one of the few gentlemen in the paddock, told Sonntagsblick that he still has some peers.

Asked if he was privately congratulated after Sergio Perez’s second place in Malaysia recently, the Swiss said: “Martin Whitmarsh, of McLaren, offered me a very nice congratulation.

“Franz Tost (Toro Rosso) wrote me a lovely text. And then Domenicali and the people at Ferrari; we have a very friendly relationship,” added Sauber.

As for whether there are many other gentlemen in F1, he insisted: “In this business, you don’t really ask this question.

“I didn’t know Colin Chapman. Ken Tyrrell was someone who appealed to me greatly, but he didn’t take us (Sauber) seriously. It was the same with Frank Williams.”

Indeed, in the paddock, scepticism and cynicism are more widespread, which explains why Sauber’s 2012 car – although fast throughout winter testing – was not regarded as a serious threat until mere days ago.

“We knew our car was good after the tests in Jerez and Barcelona. But the others just thought that we were running light, which is common when a team from the midfield shows something,” said Sauber.

Also amusing, according to Peter Sauber, is the story of Sergio Perez.

“A year ago it was said he just paid for his cockpit. So it makes me chuckle now when I see them say he is going to Ferrari,” he smiled.

Ross Brawn has confirmed reports that Mercedes’ 2012 ‘F-duct’ will not be easily copied by rival teams.

We reported on Thursday that while Red Bull and now Ferrari worked quickly to copy Sauber’s clever exhaust solution, they are crying foul over the Mercedes F-duct.

Is it because they really believe it breaks the rules, or is the system simply difficult to copy?

Red Bull designer Adrian Newey was quoted by Brazilian O Estado de S.Paulo newspaper in Malaysia: “In regard to the aerodynamic (F) duct of the Mercedes, and sending the airflow from the back to the front, it is necessary to review the entire project.”

Mercedes team boss Brawn confirmed: “The opposition is so fierce (because) there’s a recognition it’s quite difficult to do.”

He rejected the rivals’ arguments about cost, however, insisting Mercedes’ system consists mainly of carbon tubing costing no more than thousands of pounds.

“It’s a very simple, cheap system, but not so easy to implement if you haven’t integrated it into your car,” said the Briton.

“This is at the heart of the frustration of some of our opponents. If someone could put it on their car easily, I promise you we wouldn’t be having these discussions.”

It emerged this week, however, that despite the FIA having consistently sided with Mercedes on the F-duct issue, Lotus’ technical boss James Allison has come up with two new arguments that will be put to Charlie Whiting next week in China.

“We would obviously be extremely disappointed if someone was to take a different view,” said Brawn.

“The FIA have been fairly consistent over their position so we have faith that they’ll maintain that consistency.”

The FIA appears to have waded back into the ‘F-duct’ debate, indicating that the Mercedes-style solution is fully legal.

We reported on Monday that the saga looked set to continue into China next weekend, with some teams – notably Red Bull and Lotus – questioning the legality of the aerodynamic innovation.

It had emerged that Lotus technical director James Allison has come up with another argument against the technology that will be posed to the FIA’s Charlie Whiting ahead of scrutineering in Shanghai next week.

Christian Horner insists Red Bull and Lotus’ concerns are shared by others.

“Believe me it’s not just Red Bull, I think there’s half the paddock that’s been looking at this,” he told British television Sky Sport’s The F1 Show.

The Red Bull team boss revealed that Whiting left Malaysia wanting “to have a think about it”.

So, the latest development is the re-release via the FIA website of an “edited version” of the technical briefing that Whiting gave to reporters in Australia last month.

It is believed the complaining teams’ main objection to the Mercedes system is that it arguably uses ‘driver movement’ – the pressing of the DRS button – to be activated.

Under the heading “Pressing the DRS button and the issue of ‘driver movement’”, the media briefing quotes Whiting as stating simply: “This is specifically allowed (in the rules).”

Mercedes’ Ross Brawn is quoted by the BBC: “We call it the DRS, because that’s all it is. The purpose of the DRS is to improve overtaking and that’s what we’re trying to do.”

Whiting’s stance in China, however, may not be the end of it.

“Then the teams are faced with alternatives,” Horner explained. “Either accept it and get on it and maybe look at your own solution if that fits your car.

“You’ve got the opportunity to protest if we were to feel – or any other team were to feel – that we didn’t agree with Charlie’s interpretation,” he added.

Norbert Haug has the ‘F-duct’ debate around by admitting he questions the exhaust solution featured on this year’s McLaren car.

Some teams – notably Red Bull, Lotus and Ferrari – have complained loudly about the W03′s aerodynamic configuration, arguing the F-duct ban completely ruled out similar systems that are triggered by a driver’s movement.

Mercedes argues that its new F-duct is entirely passive and is triggered not by the driver but by the activation of the ‘DRS’ rear wing system.

So far, the FIA agrees, but it has led to suggestions Mercedes is only performing in qualifying because of its questionable F-duct, before struggling in the race when DRS use is much more limited.

“We have to live with that,” Mercedes’ motor racing chief Haug is quoted by Sport Bild, “until we are faster in the race, but it’s not true that we do not have a good car.

“We are a serious team that has to pretend nothing; we have prepared well in winter testing.”

Team boss Ross Brawn said recently he suspects all the fuss about Mercedes’ F-duct is a diversion when it comes to the exhaust solutions taken by some of his rivals in the wake of the blown diffuser clampdown.

Haug agrees that championship leader McLaren’s solution, for example, is “probably not what they (the FIA) had in mind when the blown diffuser was banned”.

But he also said Mercedes is not threatening to protest the “clever” British team.

“It is quite legitimate that we ask the FIA for a clarification, otherwise we could be missing a trick.

“It’s part of the game,” he explains.

Aldo Costa has revealed he is unhappy with Ferrari’s comments in the wake of his departure last year.

The Italian was stepped down as the famous team’s technical director, and he switched to Mercedes before the German marque made a significant step forwards with its 2012 car.

He has remained quiet about his treatment by Ferrari until now, telling Autosprint magazine that the Maranello marque lacked “style and professionalism” as it handled its restructuring.

Asked for more information, he said Ferrari explained “things that not only myself but also the whole world of formula one knows is not the truth”.

Costa confirmed that he was referring to Ferrari’s suggestion that he lacked “creativity”.

Still, he said he is not happy to see his old team struggling to make it into Q3 with the aggressive F2012.

“I still have so many friends in Maranello, but now I want to be 100 per cent engaged on succeeding with Mercedes.”

He said the Ross Brawn-led team has a “different” approach to Ferrari’s “that makes it easier to do things”.

A third major team has joined the crusade against Mercedes’ so-nicknamed ‘W-duct’ innovation.

Until now, only Red Bull and Lotus were pushing hard for the FIA to ban the drag-reducing system that Britain’s Sky television is calling ‘Super-dooper DRS’.

Auto Motor und Sport reports that Ferrari has now joined the anti W-duct group, providing a new argument about why a driver is not permitted to activate a separate system by pressing the ‘DRS’ button on the steering wheel.

“So far I have heard nothing that convinces us that it is illegal,” the FIA’s Charlie Whiting is quoted as saying.

He is not, however, ruling out an eventual change of heart.

“As we understood more about how the mass damper worked and as more arguments came onto the table, eventually we could no longer turn a blind eye,” said the Briton.

Still, Whiting is not expecting a post-race protest in Malaysia.

“I think everyone understands that that is not good for the sport,” he said.

So far, McLaren is staying out of the fight, with Auto Motor und Sport believing that Martin Whitmarsh “will not wage war against his engine supplier”.

Nonetheless, Mercedes boss Ross Brawn is more than unimpressed with the warring trio.

“There are a massive amount of things we do with DRS, so to pick on one thing and say ‘We don’t like that very much as we haven’t thought about it’, is wrong,” the Briton charged.

Michael Schumacher has played down expectations he or Nico Rosberg could put their 2012 Mercedes on pole in Malaysia.
“I think we will be somewhere near the top,” Rosberg is quoted by Germany’s Auto Motor und Sport. “The race is more of a worry for us.”

Last weekend in Australia, the W03 was strong in qualifying but faded in the race as it ate through the Pirelli tyres.

Mercedes insists it is working on the race pace problem, but the Brackley based team could shine even brighter in Sepang qualifying, with the innovative W-duct working particularly well on the long straights.

So could Schumacher secure his 69th pole on Saturday?

“That would be too optimistic,” said the 43-year-old German. “I think the battle for fifth place is the maximum.”

A really good qualifying for Mercedes, however, would be a problem for a team like Red Bull.

“With the (W-duct) system, the Mercedes will be very difficult to overtake,” Dr Helmut Marko told Bild newspaper.

It is believed the reigning champions, despite insisting the system is illegal, are hard at work on their own F-duct.

But Marko admitted: “It is very difficult to recreate.”

Mercedes team boss Ross Brawn believes all the fuss about the W-duct is a ploy by teams like Red Bull.

“They are bombarding the FIA with questions about our technology in the hope of finding out the secret,” he said.