1993 Mercedes-benz 190e 2.6 Sedan 4-door 2.6l Original Owner Pristine on 2040-cars

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VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

Automakers' sound systems: Crank it, don't yank it

Years ago, one of the first things most music lovers did after buying a new vehicle was drive to an aftermarket stereo shop to get the crappy stock components swapped for better gear. And you'd typically get not only better sound but also more bang (and boom) for your buck. But in the past decade or so, the overall quality of OEM audio has dramatically increased, while car electronics became more complex, removing the incentive for most new vehicle owners — and all but the most hardcore DIYer — to start from scratch. In 2010, I did a comparison of the average costs for OEM electronics vs. similar offerings from the aftermarket, and back then automakers' stock premium systems were by far the best bargain — and are probably an even better value now. The premium 14-speaker, 1,200-watt JBL system in the all-new 2019 Toyota Avalon is a prime example of this trend. It's standard on the top two Limited and Touring trims and is available as a $680 audio upgrade on the XLE and XSE. I doubt you can even buy 14 speakers and 1,200 watts of amplification from the aftermarket for 700 bucks, much less have it all installed. And because the system is bundled with Toyota's Entune infotainment system, Apple CarPlay and a surround-view camera, removing the head unit means you would likely lose these features. Another advantage of OEMs and their audio partners is they can design the car around the audio system. In the past, automakers would typically place speakers where convenient for packaging, not for optimal sound reproduction, and audio engineers were forced to compromise. But as with the Avalon's premium JBL audio system, this is starting to change. At a recent behind-the-scenes peek for media into the process of developing the system, Toyota and Harman engineers delved into the minutia of sealing the inner panel of the front doors to create an enclosure for 6x8-inch woofers, making space in the pillars for JBL horn tweeters and extensively measuring the acoustic properties of the interior to tune the sound to the space. I'm met some creative and skilled car stereo installers, but none with a degree in psychoacoustics. The system is also the first to feature Quantum Logic Surround that creates a multi-channel listening experience from two-channel sources. And it includes Harman's Clari-Fi processing that "rebuilds key details lost" in compressed audio formats used by streaming music services and MP3s.

F1 cancels season-opening Australian Grand Prix over coronavirus

Workers pack up in pit lane after the cancellation of the Australian Formula One Grand Prix in Melbourne, Friday. / AP   MELBOURNE, Australia — As thousands of fans queued to get into the Australian Grand Prix, seemingly unperturbed by the coronavirus pandemic, the Formula One teams and drivers were packing up to leave. The rapid spread of the virus left organizers with little choice Friday but to cancel the season-opening race, particularly after McLaren withdrew because a team member tested positive for the COVID-19 illness and following heavy criticism from six-time world champion Lewis Hamilton. The two practice sessions that usually showcase what the teams have been improving in the off-season were less than two hours from starting when the decision was publicly announced. Principals of nine F1 teams and organizers met overnight and “concluded with a majority view of the teams that the race should not go ahead," a joint statement by FIA, motorsport's governing body, local organizers and F1 said. “It's been a very fluid situation," F1 chairman Chase Carey said. “We're all disappointed not to have it, but I think we've made the decision we had to make." “It's not like it came out of the blue," Carey told a news conference beside the F1 paddock that ended in light rain. “A week ago, when teams started traveling here, we felt it was the right decision (to stage the race). Clearly the situation changed in the interim." Practice, qualifying and Sunday's race were all scrapped, casting doubt over the Bahrain Grand Prix which is scheduled to be held next week and the Vietnamese GP, scheduled for April 5. Authorities in Bahrain have already said no fans will be allowed into the circuit. Carey said a decision on whether or not to go ahead with the the race would be made in coming days. The Chinese GP has already been postponed from April. Hamilton used the first official news conference with F1 drivers in Melbourne to say he was shocked that organizers planned to proceed with the Australian Grand Prix, which regularly attracts more than 300,000 people over four days. McLaren's decision to withdraw was ultimately the catalyst for the cancellation. That person and 14 other McLaren team members have been placed in quarantine in a Melbourne hotel for 14 days. Hamilton's Mercedes-AMG Petronas team said it sent a letter to the FIA and F1 requesting the cancellation and had commenced preparations to leave before the decision was publicly announced.