{"id":38906,"date":"2026-02-05T12:00:19","date_gmt":"2026-02-05T17:00:19","guid":{"rendered":"https:\/\/lastwordonsports.com\/motorsports\/?p=38906"},"modified":"2026-02-05T12:06:06","modified_gmt":"2026-02-05T17:06:06","slug":"f1-mercedes-ready-to-escalate-if-action-taken-against-their-engine","status":"publish","type":"post","link":"https:\/\/lastwordonsports.com\/motorsports\/2026\/02\/05\/f1-mercedes-ready-to-escalate-if-action-taken-against-their-engine\/","title":{"rendered":"F1: Mercedes ready to escalate if action taken against their engine"},"content":{"rendered":"

The biggest story of the winter break – Mercedes’ 2026 engine solution<\/a> – remains a key issue for F1’s manufacturer teams. Another reunion has been organised between engine suppliers and the FIA, with the intent of reaching a compromise.<\/p>\n

At Mercedes, the situation is clear. The Silver Arrows believe their power unit is unequivocally within the regulations, having previously received confirmation from the FIA about their engine’s legality.<\/p>\n

Of course, this does not stop other manufacturers from making counter-arguments. This topic is still being discussed, and with various courses of action on the table, Mercedes are ready to embroil themselves in Formula 1’s political games.<\/p>\n

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Why Mercedes are confident in engine legality<\/h2>\n

Any team with real ambition is expected to push the limits of the regulations. This reality is extremely relevant this year, when a brand new set of rules provide teams with plenty of room for aggressive interpretations.<\/p>\n

Aston Martin’s AMR26<\/a> has offered an early glimpse into the radical aerodynamic solutions we could see in 2026.<\/p>\n

However, it is power unit development that has proven the biggest point of disagreement over the winter.<\/p>\n

Mercedes have spent more than a year developing a unique compression ratio innovation. In short, the German constructor is able to increase their engine’s compression ratio above the 16:1 limit.<\/p>\n

The consensus is that Mercedes<\/a> achieve this through use of thermal expansion. As a result, this process only takes place when the engine is at high temperatures and being used on track.<\/p>\n

Crucially, when the FIA conduct static tests at normal temperatures, the compression ratio is within the 16:1 limit.<\/p>\n

Because there is no agreed upon methodology for measuring compression ratio on track, Toto Wolff’s team can capitalise on their solution when the W17 is out and running – increasing the ratio and unlocking more horsepower.<\/p>\n

For the time being, it is difficult to assess the lap-time value of this unique approach. Most estimates suggest a baseline improvement of three tenths per lap is possible.<\/p>\n

With that said, depending on how effectively Mercedes’ sustainable fuel interacts with the engine, the performance benefit could be even greater. (cont. on next page)<\/em><\/p>\n

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<\/p>\n

At this stage, like much of these all-new 2026 regulations, nothing is clear.<\/p>\n

From the Mercedes perspective, there are no fair grounds to protest their engine’s legality. They have already been given the green light by the FIA, who they consulted about this idea from the very beginning.<\/p>\n

The German team would never pour their resources into an idea that they believed could be banned. Consistent with this reasoning, Toto Wolff’s team completely reject the claims made by other manufacturers.<\/p>\n

Mercedes not afraid of standing their ground<\/h4>\n

According to it.motorsport<\/a>, Mercedes are happy for escalation if they believe an unfair decision is made. The Chairman of the Mercedes group, Ola Kallenius, is reportedly willing to bring the issue to court if the Mercedes compression ratio is banned.<\/p>\n

Of course, this scenario is still precisely that – a hypothetical scenario. Still, these reports are indicative of how strongly Mercedes feel on this issue.<\/p>\n

Irrespective of what the team feels internally, presenting a strong front publicly is important in such disputes. The Brackley-based operation is very familiar with how to navigate the politics of F1.<\/p>\n

At the beginning of 2022, Toto Wolff had no issue with raising complaints about porpoising and calling for changes – something which Red Bull<\/a> were unsurprisingly not impressed by.<\/p>\n

Still, Wolff’s recent comments<\/a> leave no room for interpretation about his feelings on this particular matter:<\/p>\n

“Get your s*** together,”<\/em> was his message to rival teams when speaking to the media last week.<\/p>\n

“They are just doing secret meetings and sending secret letters. And keep trying to invent ways of testing that just don’t exist. <\/em><\/p>\n

“I can just say at least from us here, we are trying to minimise distractions. <\/em><\/p>\n

“Minimising distractions is looking more at us than everybody else – when it\u2019s pretty clear what the regulations say, and also pretty clear what the FIA has said to us.”<\/em><\/p>\n

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Rival manufacturers push for a compromise<\/h4>\n

As previously reported on LWOS<\/a>, the other engine suppliers are unhappy with the Mercedes compression ratio trick.<\/p>\n

They have made their frustrations clear, with Honda, Ferrari and Audi<\/a> all writing letters to the FIA. What remains to be seen is what action will be taken.<\/p>\n

Although Mercedes will be unimpressed at any kind of compromise, they can at least be relatively confident to avoid a worst-case scenario. Banning the Mercedes engine is not likely, and is frankly not seen as a realistic objective from the other manufacturers.<\/p>\n

Nevertheless, other proposals are being considered. One of the more established ideas is to introduce a new way of measuring compression ratio whilst the cars on track.<\/p>\n

More recently, alternative measures have been named. Among them is potentially introducing some form of limitation on the fuels Mercedes use – as a way to limit their advantage.<\/p>\n

It must be emphasised that at this stage, nothing is set in stone. Mercedes still maintain their engine is fully legal and, considering their transparency with the FIA throughout the development process, this is understandable.<\/p>\n

Despite this, the complaints of other teams could throw a spanner in the works. The FIA ultimately wants to avoid any official protests being lodged by the other manufacturers in Australia.<\/p>\n

To avoid this controversy from spiralling out of control, the Federation is willing to compromise. Then again, as mentioned above, Mercedes are not afraid of getting their elbows out either.<\/p>\n

In short, there are still more questions than answers about the Mercedes engine compression ratio. The next few weeks should help clarify proceedings.<\/p>\n

Main photo: Sam Bloxham (Mercedes F1 Media Archive)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

The biggest story of the winter break – Mercedes’ 2026 engine solution – remains a key issue for F1’s manufacturer teams. Another reunion has been organised between engine suppliers and the FIA, with the intent of reaching a compromise. At Mercedes, the situation is clear. The Silver Arrows believe their power unit is unequivocally within […]<\/p>\n","protected":false},"author":4927,"featured_media":38907,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","sfio_featured_image":false,"sfio_embed_code":"","_ef_editorial_meta_date_first-draft-date":"","_ef_editorial_meta_paragraph_assignment":"","_ef_editorial_meta_checkbox_needs-photo":"","_ef_editorial_meta_number_word-count":"","footnotes":""},"categories":[4,3],"tags":[2582,121],"class_list":["post-38906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-formula-1","category-news","tag-f1-2026-season","tag-mercedes"],"modified_by":"Jaden Diaz-Ndisang","_links":{"self":[{"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/posts\/38906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/users\/4927"}],"replies":[{"embeddable":true,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/comments?post=38906"}],"version-history":[{"count":5,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/posts\/38906\/revisions"}],"predecessor-version":[{"id":38912,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/posts\/38906\/revisions\/38912"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/media\/38907"}],"wp:attachment":[{"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/media?parent=38906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/categories?post=38906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lastwordonsports.com\/motorsports\/wp-json\/wp\/v2\/tags?post=38906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}