What gasoline engines should you avoid?

if the electric has been in vogue for over two years now, the thermal should not be buried for all that! Even the end of combustion engines is scheduled for 2035 in the euro zone, the models run on fuel or to diesel fuel there is still a coast. And this for many reasons. One of the most obvious points is undoubtedly the price.

In the reduction of subsidies for electric vehicles (the maximum bonus increased from 6,000 to €5,000 since January 1, 2023), and the highest inflation related to the unfavorable economic context, prices are rising. Accessible electric models remain rare. Here are some List less than 30,000 euros.

And sometimes, combustion engines are more popular. Each brand has its own engine technology, models that have been updated since their debut. In the house of Peugeot for example, it is the Block of PureTech e-THP for turbocharged models (code name EB) for example, covering most of the brand’s models. In the house of renault, in essence they are TCe engines which has been present under the bonnets of Diamond models since 2009 (Mégane III). Resulting from the alliance with Nissan, this block bears the code name “H”.

Since their launch, they have been the subject of many variants. While some versions experienced relatively high levels of reliability, some blocks suffered from quite a serious problem… Here is the list of gasoline engines to avoid!

PureTech gasoline engine to avoid

In the house of PSA(Citroën, DS, Opel and Peugeot) in 1.2 Pure Tech has been widely used since 2012 and its launch with the small 208. But this block is not free of flaws. While the 110 and 130 hp turbocharged versions were recognized for their quality in terms of consumption and reliability, the other variants suffered from serious problems.

All the incriminated models use a 1,197 cm3 three-cylinder petrol engine: this is the 1.2 PureTech (code EB2). This widely used engine started with 82 hp, initially as the VTi. Then declined from 68 to 155 hp, it adopted the name PureTech in all power levels in 2015. In the lot, we distinguish atmospheric blocks (82 hp and less) and those equipped with turbo (110 hp and more ). It came to Opel, following the acquisition of the PSA brand in 2017, under the names 1.2 “very short” (no turbo) and 1.2 T or Turbo, sometimes flanked by the Ecotec label.

The main fault is related to the timing belt. It soaks into the crankcase, and tends to deteriorate prematurely. A problem is particularly present in cars that are not driven much.

The low-pressure indirect injection naturally aspirated engine in question:

– 68 hp (Citroen C3 “3”, Peugeot 208)

– 75 hp (Citroen C4 Cactus)

– 82 hp (Citroën C1 “2”, C3 “3”, C3 Aircross, C4 Cactus, C-Elysée, DS 3, Opel Crossland X, Peugeot 108, 208, 2008, 308 “2”)

The supercharged high-pressure direct injection engines in question:

– 110 hp (Citroën C3 “3”, C3 Picasso, C3 Aircross, C4 Cactus, C4 “2”, C4 Picasso “2”, Berlingo “2”, DS 3, Opel Crossland X, Peugeot 208, 2008, 308 “2 », Partner « 2 »)

– 130 hp (Citroën C4 Cactus, C4 “2”, C4 Picasso “2”, DS 3, DS 4, Opel Crossland X and Grandland X, Peugeot 2008, 308 “2”, 3008 “1” and 2″, 5008 “ 1 and 2″)

Tce petrol engine to avoid

They all belong Renault group (Renault, Dacia, Nissan), except for the rare Mercedes Citan (derived from Kangoo) gasoline. They use the 1,197 cc four-cylinder called 1.2 TCe (code H5Ft, used internally and on dedicated discussion forums), in Renault, and 1.2 DIG-T, in Nissan (engine code HRA2DDT). This block, which is widely used, is in the catalog from 2012 to 2018. According to Renault, the offending vehicles are those whose engine was manufactured from 2012, the date of its appearance, to May 11, 2016, the date if where, at the latest, improvements have been applied at the factory (details opposite). Please note that these are engine build dates.

Apparently, a car put into circulation in June 2016 could be affected. It is possible to affect all cars with the Euro 5 standard (which will be checked on the V9 line of the gray card), as well as Euro 6. Since the testimonies of some professionals are doubtful, concrete support cases, and owners of recent models questions. on the scope of the changes made.

Which models are affected?

– 100 hp (Renault Megane 4)

– 115 hp (Dacia Lodgy and Dokker, Mercedes Citan, Nissan Juke, Pulsar and Qashqai 2, Renault Mégane 3, Scénic 3 and 4 and Kangoo 2)

– 120 hp (Renault Clio 4 and Captur)

– 125 hp (Dacia Duster 1)

– 130 hp (Renault Mégane 3 and 4, Scénic 4 and Kadjar)

The problems affected are particularly related to the stiffness of the cylinders (in question, insufficient stiffness of the piston rings and an excessive pressure variation), the distribution chain which can be noisy or relaxed and finally a valve problem.

Also read:

Volkswagen Polo (2009-2017): what are the most common problems?

Hyundai Tucson (2015-2021): what are its most common problems?

Citroën C3 Aircross: what are its frequent problems?

The gasoline engines to avoid from foreign manufacturers

In the house of Nissanwe regret the turbo breaks in the Qashqai and X-Trail released until 2016, and the breakdown of the auto gearbox in the SUVs of the brand before 2018. There is no need to rush to the German manufacturers to hope for something better, because it also includes BMW and Mercedes among the worst students.

In the house of BMW, the 2014 Series 1 and X1 16d and 18d suffer from timing chain breaks, while some Series 2 diesels have fragile engine mounts. We also apologize for the EGR valve problems on pre-2018 diesel models.

The most serious brand is Toyota, which maintains the first place in the ranking of the most reliable companies. Hybrid models do not suffer from any major problems, and represent the majority of sales from the Japanese, while the electronics are mastered: safe bet from time to time.

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