5 najčastejších chýb pri „domácich” opravách automobilov

Napísal ProfiAuto 06. február 2025

Čo Slovák, to domáci majster. A pretože mnoho Slovákov sa za šikovných domácich majstrov považuje, prejavuje sa to aj v doma robených opravách automobilov. V praxi sa ale často ukáže, že zdanlivo jednoduchá oprava auta nie je až taká jednoduchá a je lepšie využiť profesionálny autoservis.

Odborníci zo siete ProfiAuto Service preto pripravili zoznam piatich najčastejších chýb, ktorých sa dopúšťajú majitelia vozidiel pri svojpomocných opravách. Na základe online príručiek robia vodiči opravy bez potrebnej prípravy, skúseností a bez špecializovaných nástrojov, ktoré sú pri mnohých opravách nevyhnutné. 

1.     Výmena rozvodového remeňa

Vymením rozvodový remeň a ešte k tomu ušetrím. Domáci opravári by si ale mali uvedomiť, že ak nie je remeň správne nasadený, tak ich namiesto úspory čaká pekne drahá oprava. Nesprávne nainštalovaný remeň môže viesť k trvalému poškodeniu motora, čo je veľmi vážny a nákladný problém.

„Nestačí len vymeniť rozvodový remeň. Je totiž vysoko pravdepodobné, že zdroj poškodenia jedného prvku hnacieho systému ovplyvní tiež jeho ostatné súčasti. Je preto dôležité vymeniť ako remene, tak i kovové súčasti. Zároveň je nutné dbať na správny postup a použiť špecializované nástroje určené na tento úkon. Správne napnutie remeňa je potrebné premerať, čo sa nezaobíde bez prístrojov, ktoré bežný domáci majster vo svojej garáži nemá,” hovorí Jindřich Krejčí, riaditeľ projektu ProfiAuto v Českej republike a na Slovensku. 

2.     Výmena tlmičov

Tu už našťastie aj online príručky uvádzajú, že ide o zložitejšiu úlohu, ktorá si vyžaduje ako znalosti, tak i vybavenie. „Po výmene tlmičov je nutné skontrolovať geometriu a správne vyrovnanie kolies. Ak to opravujúci domáci majster neurobí, tak v najlepšom prípade sa prvky riadenia, odpruženia a pneumatiky opotrebujú nerovnomerne alebo rýchlejšie. V horšom prípade sa auto začne počas jazdy hojdať zo strany na stranu alebo prekĺzavať,” uvádza poradca pre rozvoj autoservisov zo siete ProfiAuto Service Lukáš Czauderna. 

U niektorých modelov je tiež potrebné poznať zvláštnosti, ktoré výmenu sprevádzajú. Napríklad u niektorých hatchbackov sa dá k zadným tlmičom dostať až po odstránení čalúnenia v kufri. Skúsený mechanik pri výmene posúdi stav jednotlivých montážnych prvkov, ložísk, nárazníkov a krytov. Ich zlý stav totiž môže prispievať k skráteniu životnosti vymenených tlmičov. 

3.     Výmena kolies a nastavenie senzoru TPMS

Ďalšia pasca čaká na domácich majstrov podľa odborníkov z ProfiAuto pri výmene kolies a nastavení senzorov tlaku TPMS. Ak chce mať vodič dve sady ráfikov s pneumatikami, tak je nutné, aby každý z nich mal svoje senzory. To je však veľmi drahé. Vodiči si ale napriek tomu, že je to nezákonné, inštalujú normálny ventil. Zákon totiž vyžaduje, aby vodič dostal varovanie o nízkom tlaku v pneumatike, takže ak nie sú senzory nainštalované, budú hlásiť chybovú hlášku. 

Nákupom druhej sady senzorov sa ale problém nevyrieši, pretože nové senzory musia byť správne nastavené. To znamená, že nestačí senzor správne naprogramovať, je nutné nastaviť tiež správnu polohu kolesa na osi. To sa však dá, bez špecializovanej techniky, len veľmi ťažko zvládnuť doma v garáži. Ak tieto úkony nebudú urobené správne, tak sa môže počas jazdy dostaviť náhle brzdenie alebo iný problém súvisiaci s kolesom pri jazde na nekvalitnej alebo rozbitej ceste. Nevyvážené kolesá nielen že znižujú pohodlie počas jazdy, ale znižujú i bezpečnosť. Kvôli nesprávnej výmene sa tiež rýchlejšie opotrebovávajú pneumatiky, komponenty riadenia a odpruženia. 

4.     Elektronika a elektrické systémy

Vodiči tiež skúšajú rôzne návody, ktoré riešia opravy súvisiace s elektronikou a elektrickým systémom. Kontrolky v autách a chyby zobrazené na palubnom počítači nie sú úlohami pre internetový vyhľadávač. To, že sa niektorému nášmu známemu podarilo z takého návodu svoj problém vyriešiť, ešte neznamená, že rovnaký postup bude fungovať i pre naše auto.  

„Len na základe širších skúseností a presnejšieho určenia je možné presne špecifikovať poruchu. Ak niekto zasahuje do elektroinštalácie sám, tak zvyšuje riziko, že problém neodstráni, ale navyše k nemu vytvorí ďalší problém, ktoré je častokrát vážnejší. Následky porušenej inštalácie airbagov alebo bezpečnostných pásov potom môžu mať ďalekosiahle následky. Diagnóza týchto položiek potom stojí nemalé peniaze. Domáci majster, ktorý túto poruchu spôsobí, nesie všetku zodpovednosť za nezákonné úpravy a v prípade nehody prenáša zodpovednosť na majiteľa vozidla,” vysvetľuje Lukáš Czauderna zo siete ProfiAuto Service.

5.     Výmena batérií

Napriek tomu, že vodič si kúpi batériu vhodnú pre svoj model auta, je potrebné si uvedomiť súvislosti. Automobil musí totiž s novou batériou naplno spolupracovať. Niektoré autá zvládajú toto prepojenie samy, ale u iných je potrebné všetko nastaviť pomocou počítača. Ak k tomu nedôjde, tak nám napríklad systém Štart-Stop nebude správne fungovať alebo sa nová batéria rýchlo vybije.

„Mnoho domácich majstrov je motivovaných nechodiť do servisu a ušetriť peniaze. Spočiatku ekonomicky výhodná oprava sa ale môže postupom času pekne predražiť. Je preto potrebné zvážiť, či chceme neodbornými úpravami prísť napríklad o záruku. Ďalej je potrebné myslieť na ďalšie aspekty týchto opráv, ktorými sú problémy spojené s ekológiou, recykláciou a využitím batérií, pneumatík, použitých dielov alebo kvapalín,” dodáva riaditeľ projektu ProfiAuto Jindřich Krejčí. 

1 Komentár

  • Komentár steroids Weight lifting %PM, %14 %722 %2025 %16:%mar napísal steroids Weight lifting

    There is a optimistic relationship between muscle creatine uptake
    and exercise efficiency [17]. Volek et al [18] observed a significant improve in strength efficiency after 12 weeks creatine supplementation with a concurrent periodized heavy resistance
    training protocol. The creatine supplementation protocol consisted of a weeklong loading period of
    25 g/d followed by a 5 g maintenance dose for the rest of the coaching.

    One Other group ingested four × 5 g of CM for 5 days as
    a non-blinded benchmark control. This evaluation allowed for a comparability
    of ingesting really helpful doses of liquid creatine to a placebo, as
    properly as seven occasions the amount really helpful by the producer that would purportedly present an equal quantity of CM.
    The researchers discovered that CM supplementation considerably elevated
    muscle free creatine content material by 31 ± 28%.
    However, not one of the other teams skilled any impact on muscle free creatine, phosphocreatine, or complete creatine content.

    Despite ATP being used at high rates, the lower in ATP levels during resistance coaching is
    often small or statistically insignificant. Multiple studies have shown this,
    suggesting that ATP is being virtually completely regenerated during train. In flip, we most likely don’t have
    to relaxation so much to find a way to replenish our ATP
    stores. Research have shown creatine monohydrate successfully will increase lean muscle mass, improving overall performance.
    It also reduces muscle fatigue, allowing you to perform more repetitions
    with weight. A double-blind placebo controlled research performed at The Ohio State University and published
    within the Journal Of Strength And Conditioning evaluated a one rep max on bench press after 10 days of creatine supplementiation. The examine discovered that creatine
    monohydrate and creatine magnesium chelate demonstrated similar efficiency outcomes, with no difference demonstrated between both [R].

    Additionally, due to differences in muscle uptake rates, some imagine that it might outperform
    creatine monohydrate. A great amount of research
    indicates that it’s protected and efficient, and new forms of the
    complement must be compared to it. As A Result Of it’s safe, efficient and
    affordable, creatine monohydrate has long been the gold commonplace for this supplement.

    The gastrocnemius weight-to-body weight ratio was increased by resistance
    train coaching; Tc confirmed a higher gastrocnemius weight-to-body weight ratio than Cc.

    Soleus mass, in absolute values and in ratios with physique weight and tibia size, didn't differ between the teams.
    Although our methodology doesn't resolve the mechanism, increased creatine stores
    present extra phosphagen energy contribution. This is
    noteworthy within the context of our testing procedure, as we beforehand demonstrated a linear relationship between glycolytic contribution and 15-s work [22].

    The gradient of this relation adjustments for individual responders beneath creatine supplementation. When considering glycolytic contribution, statistical equivalence was discovered between all
    analyzed circumstances due to elevated FFM and decreased ΔLa.
    On the premise of those findings, we conclude that the identical quantity of lactate is produced through the sprint take a look at
    beneath all circumstances.
    These components influence the effectiveness of the supplement
    and its capability to help muscle energy and cognitive features.
    Creatine HCL's superior solubility is often cited as its major benefit over Creatine Monohydrate.
    This attribute theoretically allows for sooner and more environment friendly absorption within the body.
    Nonetheless, scientific evidence instantly evaluating the
    absorption charges of creatine hcl vs monohydrate
    is limited, and most claims about HCL's superior solubility come from manufacturer claims or
    preliminary research. These are kinds of creatine linked
    to molecules of malic acid, a naturally occurring acid found in fruit and
    veggies, found in higher quantities in apples, cranberries, grapes and cucumbers.
    It can additionally be widely used as a meals additive (E-296),
    due to its flavouring and acidity regulating properties.
    Whereas Tri-Creatine Malate has 3 malic acid molecules, Di-Creatine Malate has 2.

    Some evidence exhibits that creatine magnesium chelate is
    as efficient as the monohydrate kind. However, restricted info
    is available, and it doesn’t appear to be superior.

    As A Outcome Of of this, it seems that creatine magnesium chelate may be an efficient kind, but it isn’t
    better than standard monohydrate types. Both the
    monohydrate and magnesium chelate groups improved their efficiency more than the placebo group,
    but there was no difference between them.
    Nonetheless, its restricted capacity, because of small substrate
    reserves, restricts its sustainability [7]. The creatine kinase response (Formula 1) acts as a temporal buffer to when ATP demand is excessive and also acts as a buffer to
    protons as a byproduct of ATP hydrolysis [[15], [16], [17]].
    The results point out potential variations in limitations of dash performance of participants.
    Responders to creatine supplementation are doubtlessly restricted by mechanical or metabolic elements.

    Creatine phosphate plays a pivotal role in the rapid regeneration of adenosine triphosphate (ATP), the primary energy foreign money in cells,
    notably throughout short bursts of high-intensity activities.

    This is crucial for many who are physically energetic and seeking
    to enhance their bodily performance. To guarantee optimum absorption, it might be
    taken with a meal that features carbohydrates and proteins.
    Staying well-hydrated can additionally be essential,
    as creatine can improve the necessity for water to keep up
    muscle hydration. When considering the chemistry of creatine compounds,
    it's essential to know their solubility, stability, and absorption rates.

    These newer forms have been purported to have higher bodily and chemical properties, bioavailability,
    efficacy, and/or safety profiles than creatine monohydrate [1].
    Nevertheless, there might be little to no proof that any of the newer
    forms of creatine are simpler and/or a safer type of creatine than CrM
    whether ingested alone and/or in combination with different vitamins
    [1]. Stories because the early Nineteen Eighties have advised that creatine metabolism and/or availability might have antidepressive effects [312,313,314,315,316,317,318].
    For example, the creatine precursor SAMe has been reported to be an effective therapy for clinical
    depression. Allen and colleagues [319] reported that rats fed creatine diets (4%)
    for 5 weeks altered depression-like habits in response to forced swim
    training in a sex-dependent method, with female rats displaying an antidepressant-like response.
    Ahn and coworkers [320] reported that a single therapy of creatine
    or train has partial results as an antidepressant in mice with persistent
    mild stress-induced despair and that combining creatine and train promoted
    greater benefits.
    Second, although there is a trend toward increased 15-s work relative to FFM with creatine supplementation, this trend did not reach statistical significance.
    As described by Mader and Heck [4], lactate distribution space is a fraction of FFM.

    Therefore, as FFM will increase, the lactate distribution house also expands proportionally [4,22].

    This growth signifies that the identical whole amount of lactate produced is
    extra diluted, theoretically resulting in decrease concentrations of capillary blood lactate.
    Buffered Creatine is advertised as the one sort of creatine
    with a pH above 12. It is claimed that this forms
    a extra stable molecule that enters the muscle cell in its entirety and does not result in the formation of creatinine, which increases bioavailability
    and makes it superior to creatine monohydrate.
    Given these findings, when performing tests similar to νLamax along
    side 15-s sprints, consideration of creatine supplementation is important.

    The glycolytic contribution, as measured by
    the product of ΔLa and FFM, may serve as a more dependable indicator for assessing glycolytic capacity across
    participants. Our examine could possibly be improved
    by willpower of intramuscular creatine levels earlier than and after supplementation both by D3Creatine
    [57] or muscle biopsies. Muscle biopsies would additional enable for the dedication of muscle fiber distribution [52] and intramuscular lactate concentrations,
    offering further mechanistic explanations. The method for indirectly calculating glycolytic
    energy contribution is predicated on Margaria et al.’s original work with
    an accumulation of 1 mmol/L of capillary blood lactate similar to an energy equal of
    3 mL oxygen per kg of body mass (BM) [13,23,24]. Building on this work, Mader and Heck [4] suggested that a extra accurate measurement of lactate distribution house
    ought to contemplate fat-free mass (FFM) instead of complete BM.

    The knowledge are introduced as imply ± standard deviation and
    95% confidence interval (CI95%). All variables have been examined using
    the Shapiro–Wilk test to verify for regular distribution. To
    determine tlim reliability after familiarization, the intraclass correlation coefficients were applied
    (Koo and Li, 2016). The paired "t" check
    was used to check the values of MAOD and AC[La-]+EPOCfast
    for every condition. Pearson’s correlation test was also utilized
    to determine the associations between values of MAOD and AC[La-]+EPOCfast for every situation. The Pearson’s correlation check
    was utilized and the coefficient of correlation was categorised as
    negligible (0 to zero.2), weak (≥0.2 to zero.4), average (≥0.4 to zero.7), sturdy (≥0.7 to 0.9), and very robust (≥0.9 to 1.0) (Rowntree, 1991).
    As a qualitative analysis, the magnitude of variations between groups
    was calculated and expressed as standardized imply variations (Cohen’s d), assuming threshold values for Cohen’s d statistics of ≥0.2
    (small), ≥0.5 (moderate), and ≥0.eight (large) (Cohen, 1988).

    Mean differences between circumstances together with the 95% CI
    are displayed in Determine 4. Capillary blood samples have been taken from the left earlobe twice through the resting
    period, after the warm-up, immediately after the sprint, and then each
    minute for eight min after the 15-s cycle sprint.
    For the willpower of lactate focus, capillary blood samples (20 μL) had been collected from the earlobe into an end-to-end capillary (20 μL,
    EKF Diagnostic). Immediately after collection, the filled capillary was combined with a hemolyzing answer.
    Blood lactate concentrations were measured amperometric-enzymatically utilizing the Biosen C-Line (EKF Diagnostics).
    The all-out cycle sprint was performed in a
    seated position using the big chainring (if applicable)
    of the participant’s bike and the 15-tooth cog of the
    ergometer. The recording of the take a look at began as quickly as the cadence exceeded
    30 RPM as per ergometer settings.
    Finally, for folk who are going to be taking creatine for over a month 1 month the place any performance
    profit isn't of dire significance to comprehend earlier than that time has past, we might suggest just starting at maintenance dose.
    To get the benefits from supplementing with creatine,
    we want to take the best sort and the right dose.
    The researchers discovered that each Kre-Alkalyn and monohydrate increased energy.
    Kre-Alkalyn has proven a higher impact on energy output than monohydrate,
    in addition to a greater impression on anaerobic endurance when in comparability with monohydrate.

    Anabolic steroids are in essence hormones, ensuing of their
    having a large impression on many physiological processes in the
    human organism. Prolonged intake of testosterone analogues will decrease the
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    which may cause a scarcity of this hormone after quitting the complement.
    Individuals with heart-related issues or prostate enlargement should not take anabolic steroids, as they can worsen these and plenty of other circumstances.
    With extra benefits from NutriGenesis® vitamins
    and minerals to maintain up electrolyte balance and fuel
    recovery, Pre Lab Pro® is the all-in-one pre-workout solution for
    peak efficiency. Nonetheless, there isn't a stable research to again up many of these claims, and it seems
    that these varieties are just as efficient as monohydrate, which has truly to be shown as probably the most cheap and efficient kind.

    Lastly, take your creatine as recommended by your nutritionist or physician. Once More, the most important problem with creatine hydrochloride is the
    shortage of analysis. Moreover, you may discover creatine capsules, ready-to-drink drinks, and powders
    being offered.
    To check this speculation, Spillane et al. (2009) compared
    the results of supplementing the food plan with a placebo, CM, or CEE throughout
    forty two days of training. Serum creatinine
    and muscle whole creatine content was assessed previous to and following 6, 27, and
    48 days of supplementation and training. The researchers found
    that serum creatinine ranges were considerably increased within the CEE group after 6, 27, and 48 
    days of supplementation indicating less efficient bioavailability.
    In addition, whereas CEE supplementation promoted a modest improve in muscle whole creatine content, it was elevated to
    a greater extent within the CM group. These findings instantly contradict claims that CEE is more effective in growing muscle creatine stores.
    Further, the significantly higher creatinine levels observed ought to raise some potential safety issues about potential safety (Fig. 11).

    Another rising space is said to the potential anticarcinogenic effects of creatine supplementation.
    However — when buying creatine — it’s necessary to do not neglect that every creatine complement is different.
    There are additionally many sorts of creatine,
    with creatine HCL and creatine monohydrate being the most well-liked.
    Dietary dietary supplements embrace nutritional vitamins, minerals, botanicals, amino
    acids, and enzymes that aren't supposed to deal with or forestall illness.
    The majority of issues of safety surrounding
    dietary dietary supplements is because of contamination with unapproved elements and/or mislabeled supplements.

    Prior studies have proven that creatine content and vitality availability are low in several kinds of malignant cells and T cells
    that mediate the immune responses towards cancer [17,18,144,145,147].
    Moreover, the creatine transport SLC6A8 gene expression encodes a surface transporter controlling the uptake of creatine right into
    a cell, markedly will increase in tumor-infiltrating immune
    cells [17]. It has been well established that creatine and its related compound cyclocreatine have anticancer properties [144,303,304].

    After the loading part is over, you’ll switch to a maintenance dose of
    2-10 grams per day. Although some analysis suggests that it may be able
    to enter cells more rapidly, we still need more analysis to recommend before contemplating it a
    simpler, superior supplement. An overwhelming variety of
    scientific research assist the effectiveness of creatine
    monohydrate. In brief, creatine monohydrate is considered the unique creatine that
    athletes have been utilizing for years. Supplemental creatine
    may enhance muscle satellite cell cells and subsequent muscle hypertrophy
    Muscle Satellite cells are a special type of stem cell that, when stimulated,
    can facilitate muscle repair and finally turn into new muscle cell nuclei (myonuclei).
    For sixteen weeks, 24 male soccer gamers have been split into
    two groups and given both 750mg of Kre-Alkalyn or 750 mg of creatine monohydrate per day.

    The group was split into two completely different
    weight groups, one was given 1.5g of creatine Kre-Alkalyn, and another was given 1.5g of monohydrate creatine every for six days.


    This is especially necessary for people with pre-existing medical situations, these taking medicines, or those who have specific health considerations or goals.
    The journey of creatine inside the body is a testomony to its organic prowess.

    Creatine monohydrate is renowned for its excessive
    bioavailability, which refers to the proportion of the substance that enters the circulation when introduced into the physique and
    is thus in a position to have an lively effect.
    Creatine phosphate, while much less studied, additionally performs an important position in the physique's power methods.

    Creatine phosphate, also identified as phosphocreatine or PCr, is a phosphorylated creatine molecule
    with sixty two.3% creatine and 37.7% phosphate.
    Creatine Anhydrous
Creatine anhydrous is creatine monohydrate with
    the water eliminated. It offers barely more creatine than creatine monohydrate
    on a gram-per-gram basis, nevertheless it
    has by no means been shown to be more effective.


    Creatine use can improve efficiency in high-intensity occasions
    (e.g., weight coaching, sprints, etc). The power needs of transient,
    rapid and powerful actions lasting fewer than 10 seconds,
    corresponding to a brief dash, are met by the phosphagen system.
    This system shortly replenishes the shops of adenosine triphosphate,
    or ATP, which offers power to the working cells.
    Muscle Tissue have an existing amount of ATP hanging round ready for action, but solely a little bit — enough for a couple of seconds.

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